Dit is ons nieuw hondje Kira, een kruising van een waterhond en een Podenko. Ze is sinds 7 februari 2024 bij ons en druk bezig ons hart te veroveren. Het is een lief, aanhankelijk hondje, dat zich op een week snel aan ons heeft aangepast. Ze is heel vinnig en nieuwsgierig, een heel ander hondje dan Noleke.
This is our new dog Kira, a cross between a water dog and a Podenko. She has been with us since February 7, 2024 and is busy winning our hearts. She is a sweet, affectionate dog who quickly adapted to us within a week. She is very quick and curious, a very different dog than Noleke.
DEAR VISITOR,
MY BLOG EXISTS NEARLY 13 YEARS AND 4 MONTH.
ON /30/09/2024 MORE THAN 2.230.520
VISITORS FROM 135 DIFFERENT NATIONS ALREADY FOUND THEIR WAY TO MY BLOG.
THAT IS AN AVERAGE OF 400GUESTS PER DAY.
THANK YOU FOR VISITING MY BLOG AND HOPE YOU ENJOY EACH TIME.
The purpose of this blog is the creation of an open, international, independent and free forum, where every UFO-researcher can publish the results of his/her research. The languagues, used for this blog, are Dutch, English and French.You can find the articles of a collegue by selecting his category. Each author stays resposable for the continue of his articles. As blogmaster I have the right to refuse an addition or an article, when it attacks other collegues or UFO-groupes.
Druk op onderstaande knop om te reageren in mijn forum
Zoeken in blog
Deze blog is opgedragen aan mijn overleden echtgenote Lucienne.
In 2012 verloor ze haar moedige strijd tegen kanker!
In 2011 startte ik deze blog, omdat ik niet mocht stoppen met mijn UFO-onderzoek.
BEDANKT!!!
Een interessant adres?
UFO'S of UAP'S, ASTRONOMIE, RUIMTEVAART, ARCHEOLOGIE, OUDHEIDKUNDE, SF-SNUFJES EN ANDERE ESOTERISCHE WETENSCHAPPEN - DE ALLERLAATSTE NIEUWTJES
UFO's of UAP'S in België en de rest van de wereld In België had je vooral BUFON of het Belgisch UFO-Netwerk, dat zich met UFO's bezighoudt. BEZOEK DUS ZEKER VOOR ALLE OBJECTIEVE INFORMATIE , enkel nog beschikbaar via Facebook en deze blog.
Verder heb je ook het Belgisch-Ufo-meldpunt en Caelestia, die prachtig, doch ZEER kritisch werk leveren, ja soms zelfs héél sceptisch...
Voor Nederland kan je de mooie site www.ufowijzer.nl bezoeken van Paul Harmans. Een mooie site met veel informatie en artikels.
MUFON of het Mutual UFO Network Inc is een Amerikaanse UFO-vereniging met afdelingen in alle USA-staten en diverse landen.
MUFON's mission is the analytical and scientific investigation of the UFO- Phenomenon for the benefit of humanity...
Je kan ook hun site bekijken onder www.mufon.com.
Ze geven een maandelijks tijdschrift uit, namelijk The MUFON UFO-Journal.
Since 02/01/2020 is Pieter ex-president (=voorzitter) of BUFON, but also ex-National Director MUFON / Flanders and the Netherlands. We work together with the French MUFON Reseau MUFON/EUROP.
ER IS EEN NIEUWE GROEPERING DIE ZICH BUFON NOEMT, MAAR DIE HEBBEN NIETS MET ONZE GROEP TE MAKEN. DEZE COLLEGA'S GEBRUIKEN DE NAAM BUFON VOOR HUN SITE... Ik wens hen veel succes met de verdere uitbouw van hun groep. Zij kunnen de naam BUFON wel geregistreerd hebben, maar het rijke verleden van BUFON kunnen ze niet wegnemen...
02-12-2021
Dr. Gregory L. Little: The Incredible Edgar Cayce & The Atlantis Readings
Dr. Gregory L. Little: The Incredible Edgar Cayce & The Atlantis Readings
Dr. Gregory L. Little is a psychologist turned explorer and documentary maker. Since 2003, Greg and his wife Lora have been actively searching the Bahamas for archaeological ruins that might be linked to Atlantis, working with the Edgar Cayce organization in its Search For Atlantis Project. Along with archaeologist Bill Donato, the Littles have conducted wide explorations around Bimini, Andros, and the Great Bahama Bank. Their explorations have been featured on The National Geographic Channel, The Learning Channel, MSNBC, Sci-Fi, Discovery, and The History Channel. Greg is coauthor of the books, Edgar Cayce’s Atlantis, Mound Builders, Ancient South America, and People of the Web and has over 30 other books in print in various areas of psychology.
The Edgar Cayce story is one of the most compelling in inspirational literature. For more than forty years, the “Sleeping Prophet” closed his eyes, entered into an altered state of consciousness, and spoke to the very heart and spirit of humankind on subjects such as health, healing, dreams, prophecy, meditation, and reincarnation. His more than 14,000 readings are preserved at the Association for Research and Enlightenment, Inc., in Virginia Beach, Virginia.
The success of Edgar Cayce’s remote healing led us to accept his other claims about the mystical nature of human life, reincarnation, etc.
Today we will be talking about China, the most populous country in the world. While we all have seen ‘made in china’ almost everywhere, there are a few lesser-known facts that will surprise you.
Do you think you know China? well i guess you need to think again because China is a homeland to some extremely weird and mysterious creatures that I bet you have never heard of. From the creepiest fish to actual dragons, there is much more in China to stun you than you can imagine. Today we will show you the 10 most peculiar and mysterious creatures found only in china.
Archaeologists Discover 800-year-old Rope-bound Mummy in Peru
Archaeologists Discover 800-year-old Rope-bound Mummy in Peru
A preserved rope-bound mummy, estimated to be at least 800 years old, has been discovered in an underground tomb by archaeologists on Peru’s central coast. The mummified remains, which are in excellent condition, were found at the Cajamarquilla archaeological site about 15 miles (24 kilometers) inland from Lima. The rope-bound mummy was from the culture that developed between the coast and mountains of Peru, according to archaeologist Pieter Van Dalen Luna from the State University of San Marcos, as reported in the Guardian. The mummy is likely from the Chaclla culture, which developed in the high Andes around Lima between 1200 and 800 years ago.
“The main characteristic of the mummy is that the whole body was tied up by ropes and with the hands covering the face, which would be part of the local funeral pattern…. Radiocarbon dating will give a more precise chronology,” said archaeologist Pieter Van Dalen Luna, from the State University of San Marcos, Peru ( UNMSM) to Reuters. He added that the remains are believed to be of a person who lived in the high Andean region of the country, according to the Independent.
Archaeologist Pieter Van Dalen Luna, from the State University of San Marcos, Peru, on the right, with the rope-bound mummy just behind him.
Mummification was practiced by several indigenous cultures of the Andes region beginning as far back as 7000 years ago. The Chinchorro people, who lived in what is now Peru and Chile, were the world’s first practitioners of mummification, thousands of years before the Egyptians. Preserving the bodies of their loved ones allowed the living to retain a link with the dead.
What is fascinating is that Peruvian mummies were not just interred and left to get on with their afterlife. Some people kept mummies in their homes or brought them to festivals and they were often involved in ceremonies such as marriages, sowing, and harvesting. In some cultures, the people brought offerings of food or drink to their loved ones’ graves. Considered a link between the living and the gods, these mummies could also be taken from their resting place and “consulted” on important occasions.
Many different cultures lived in the Andean region and their treatment of the dead varied considerably, ranging from natural to assisted mummification. Preservation of the body could be achieved by desiccation or freeze-drying, processes helped by the natural climatic conditions in desert and mountainous areas found all over the Andean region. Bodies could also be treated and preserved using alcohol (from chicha maize beer). Early Andean cultures also used salt as a preservative and often removed the flesh and bodily fluids from the corpse prior to burial.
Mummies were typically placed in the fetal position and wrapped into bundles using several layers of textiles, bound with cords, and sometimes a head cloth was added. Important individuals were clothed and wrapped in high-quality fabrics and jewelry. The dead person’s possessions were interred along with their owner, sometimes along with the tools of their profession.
A closeup of the rope-bound mummy found at the Cajamarquilla archaeological site not far from Lima, Peru.
While the Cajamarquilla rope-bound mummy’s gender has not precisely been identified, it appears to be an adult male. It was found in an underground chamber tomb placed in the fetal position and bound with ropes that kept the mummy in a tight crouch for over 1,200 years. It was buried with offerings including ceramics, stone tools, and gourds containing vegetable remains.
The ancient site of Cajamarquilla, where the rope-bound mummy was discovered, was situated along a trade route linking the high Andes to urban settlements on the coast. It became an important center of commerce in the Late Intermediate Period (1000 – 1470), which was a time between empires in the Andes when many regional groups reorganized and gained power. Its prosperity was reflected in its large public buildings, boulevards, and squares.
Both the fetal position and rope-binding were funerary practices common among the late pre-Hispanic peoples of the high Andes. The mummy therefore shows that Cajamarquilla was inhabited not just by coastal peoples from the immediate area, but also by people of Andean origin from the mountains. Possibly, its importance as a trading center linking the coast to the mountains, resulted in people from the Andes settling there as well.
Peruvian mummies along with their grave goods have helped archaeologists greatly in extending their understanding of pre-Hispanic indigenous Andean cultures. Detailed examinations of the most recent find are sure to add to this understanding.
Top image: The 800-year-old Peruvian rope-bound mummy in the fetal position as it was found.
Archaeologists in Peru unearthed an ancient mummy that dates back between 800 and 1,200 years. What’s so unusual about this mummy is that it was bound with rope with the hands covering the face.
The team was very surprised that they found a mummy during their excavations as explained by archeologist Yomira Huamán Santillán in an interview with CNN, “The whole team was really happy because we didn’t think this was going to happen,” adding, “We didn’t expect to make such an important discovery.”
The preserved body was found by researchers from the National University of San Marcos. It was located underneath the middle of a town square at an archaeological site called Cajamarquilla which is near the capital of Lima.
(Not the mummy mentioned in this article.)
The mummy was probably a man between the ages of 25 and 30, although that hasn’t been confirmed as of yet. He may have come from the mountains of Cajamarquilla where it was once a busy commercial center during the pre-Columbian times.
The fact that he was tied up with rope and his hands were covering his face was actually a funeral custom in the southern part of Peru. Pieter Van Dalen Luna, who is one of the archeologists who led the excavation, stated, “The discovery of this resident sheds a new light on interactions and relationships in pre-Hispanic times.”
In addition to the mummy, the researchers found numerous marine mollusks outside of the tomb which was quite odd as the site is approximately 25 kilometers (15.5 miles) away from the coast. They even recovered llama bones there as well. But Van Dalen Luna believes that it was the individual’s descendants who placed the items and different offerings (such as food) there throughout the years.
Based on the items found at the site, it is believed that this person was very important during that time and perhaps a significant trader. “The fact of finding a mummy with these characteristics in the middle of the plaza makes it clear that this is someone of high status,” said Van Dalen Luna.
Their next job is to analyze the mummy in further detail in order to gather more information regarding the individual, such as radiocarbon dating to narrow down a more precise time when he was alive.
A news report about the discovery can be viewed here and pictures of the mummy can be seen here.
Archaeologists believe that the remains are of a man aged 18-22 at the time of his death
In the past year, we have seen the U.S. government and its Department of Defense appear to get serious about unidentified aerial phenomena. We have seen the newest branch of the U.S. Armed Force, the Space Force, appear to get serious about space defense. And most recently, we have seen the Chinese military test what appeared to be ahypersonic glide vehicle that may have either been carrying a warhead or, as was recently speculated, may have dropped a separate warhead payload or spilt into two payloads. If falling behind in hypersonic space vehicles isn’t bad enough, a Space Force leader just revealed that this Chinese hypersonic whatever can also park in orbit and potentially fire weapons from space. Is the Chinese military slowly revealing that the Tic Tac UAPs are theirs? Is it time to worry … or is it too late?
“This is a categorically different system, because a fractional orbit is different than suborbital. A fractional orbit means it can stay on orbit as long as the user determines and then it de-orbits it as a part of the flight path.”
Kind of like this?
Lt. Gen. Chance (Salty) Saltzman, deputy Space Force chief for operations (and this year’s winner of the Best Military Nickname), revealed in an online speech reported by Breaking Defense and Asian media that the Chinese hypersonic glider can do more than just travel around the world in a suborbital arc – it can achieve space orbit. And that’s not the ‘big deal’ of Salty’s revelation – “fractional orbit” means this space plane can then leave orbit and return to Earth. Imagine a space shuttle – or the Space Force’s X-37 secret orbiting spacecraft – with hypersonic speed.
Worried yet? General Salty has one more revelation up his many-striped sleeve. Because this hypersonic vehicle can deliver a payload, or perhaps even fire a separate missile, it becomes a system known in the military jargon as a fractional orbital bombardment system (FOBS) … something the general warns is a “very forward-edge technology capability” because it is also a highly maneuverable hypersonic glide vehicle (HGV) – not an intercontinental ballistic missile (ICBM) that the U.S. military has spent billions over decades building systems to defend against. It sounds like the Space Force isn’t ready for FOBS/HGV.
“And so it’s incumbent on the Space Force, in my mind, to make sure that we’re developing the capabilities to track these kinds of weapons. Before they’re launched, ideally, but then throughout their lifecycle — either on orbit or in execution of their mission set. (It is imperative for Space Force) to make sure that we’re developing those capacities to be able to track and hold accountable nations who are using these kinds of destabilizing weapons.”
Nations? There’s more than one? And “tracking” means these are offensive weapons traveling at Mach 5. How fast does the defensive weapon have to be to intercept it?
How hard is it to hit a bullet with a bullet?
Perhaps the most intriguing phrase of this revelation/discussion is “fractional orbital” – another meaning of this might be ‘transmedium from orbital to Mach 5 and back’. And “transmedium” is what many of the Tic Tac UFOs are – changing from air to underwater and vice versa. This takes us back to the original question – could this be the Chinese military slowly revealing that the Tic Tacs are theirs?
Or is the U.S. military doing the revealing?
ALL RELATED VIDEOS, selected and postedby peter2011
Triangle UFO over Berkeley, California | December 2021
Triangle UFO over Berkeley, California | December 2021
Here’s one new footage of a triangular-shaped hovering in the night sky above Berkeley in California. This happened on December 1st 2021.
Witness report:
I climbed on to the roof of a house Im working on and captured a UFO Made of about 7 lights. The lights quickly dispersed in different directions while one light remained for about 25 minutes. Understandably so, the phone didn’t quite capture the triangle shape of lights dispersing. Its quite different in person and can garuntee it wasn’t ours. edit: excuse my fat breathing and language I climbed 3 flights of stairs onto a roof to capture this video
Pentagon Comments on the New DoD UFO Group (AOIMSG)
Pentagon Comments on the New DoD UFO Group (AOIMSG)
The Department of Defense is creating a new investigative body to track and analyze "unidentified aerial phenomena," as concerns grow about national security risks posed by UFOs. Deputy Defense Secretary Kathleen Hicks, announced the creation of the Airborne Object Identification and Management Synchronization Group, "to assess, and as appropriate, mitigate any associated threats to safety of flight and national security." John Kirby, Pentagon spokesperson, responds to a question concerning this new group.
“UFOs Are Not Aggressive,” Says Senior NASA Scientist
“UFOs Are Not Aggressive,” Says Senior NASA Scientist
In an interview on unidentified aerial phenomena, Dr. Richard F. Haines explains that several features can be distinguished when observing UFO phenomena.
One is that when UFOs approach our planes, they show curiosity and interest, not a desire to attack.
UFOs and aliens are usually feared. It comes from pop culture and films. But does this evidence of the UFO phenomenon indicate what we should be afraid of?
Former NASA Senior Scientist Dr. Richard F. Haines spoke about the UFO phenomenon, focusing on the observations of more than 3,000 pilots. He spoke about the phenomenon and how these objects, which are constantly observed, behave.
These objects were spotted and tracked on radar, making maneuvers beyond the power of any known artificial mechanism, while moving at unreachable speeds.
Another common theme is that these objects approach human airplanes and behave similarly to curiosity, Dr. Haynes explains.
For example, in the case of military aircraft, pilots observe how critical electronic capabilities, such as the ability to launch missiles, are disabled when they are near these objects.
One notable example comes from the Iranian encounter of fighters with UFOs in 1976, when the weapons systems of several jet aircraft went out of order..
Dr. Haynes explains that in 50 percent of the cases he has encountered, these objects are approaching our planes, and not vice versa.
Haynes goes on to say that UFOs appear to be making evasive maneuvers to avoid our planes so as not to create a potential collision. This portion of the interview reminds the following quote from General Nathan Twining in 1947.
“The phenomenon reported is something real, not a vision or fiction … Reported performance characteristics such as extreme climb rates, maneuverability, and actions to be considered as avoidance upon detection or contact with friendly aircraft and radars, suggest that some of the objects are controlled manually, automatically or remotely. ”
Dr. Haines is currently Chief Scientist for NARCAP, an organization that has been investigating, documenting and analyzing aviation security and UFO sightings and incidents since 1999.
This leaked footage looks like it was deliberately filmed to examine exhibits and show the different pieces probably as part of a cataloguing system.
I've actually seen the colour photo's of the Air Force News circus from the very day after the Roswell UFO crash. They paraded a load of paper and tinfoil with thin wooden sticks but nothing like this content was paraded in front of the whole world's News media that day. Also, it's understood that Alien beings were recovered from the Roswell UFO crash site. You've got to understand that the day before this news circus, the United States Air Force had just announced that a UFO had in fact crashed.
There's so much information about the Roswell UFO story and it's never gonna fit into this post. So, I'll focus on this specific video with the UFO debris and I'll show the photo's with my own personal thoughts and opinions. I hope you like this video. Every single News outlet from Taiwan to Torbay and from there to here and here to everywhere all wanted a journalist there covering it. Don't forget that this was the biggest revelation since the invention of the wheel or just as important information as anything else could possibly be? People now had confirmation that we are not alone in the Universe.
Although it was briefly, that answer coming from the Government was enough to bring a cold shiver to mankind. Knowledge of such things as this must have made some people wonder just who was their neighbours really...
They didn't have time to change their opinions because the next day it got retracted and a weather balloon was torn apart in the WC by the Air Force personnel and paraded around for the media to photograph because "woops" the Air Force had made a huge mistake. Anyhoo, check out these amazing UFO photo's and this stunning crashed UFO debris video.
The pieces that I see here just below looks like they've been deliberately cut, take this exceptionally Alien looking piece of "Cross beam" which could be from a super structure of an Alien craft, say for instance the Roswell UFO crash. Would you agree that it looks like it's been deliberately cut?
It's leaked footage which insinuates the video wasn't intended for anyone else out of that specific agency yet they're showing off the pieces as if showing them to someone outside of the agency. But believe it or not, that fit's in perfect because if it's a cataloguing video it means that different departments within the agency can have copies etc and still keep a compartmental system in place.
They all each go off in their own directions and discover what they can by meeting with metallurgy experts and some will figure out the metals, some will find out where they originated, what's the latest in each field etc. I suppose it's one way of whittling down the list of possible countries that could if created this. I say that so that they can definitely rule out other countries advanced weapons or advanced aerospace systems.
I'm not sure how an agency like the Pentagon or NASA etc would come to an Extraterrestrial vehicle or if it's a straightforward process but logically thinking, nobody can just take one look and say it's UFO technology and the metal is from the frame. So, the process I listed earlier is more than likely gonna come into effect? Seek out the experts, have small snippets of information about a small conundrum and eventually the bigger question will be answered and in such a way that every single possible solution will be covered.
That's exactly why the compartmental system was started. Secrecy as well but overall, it's to further the information on any given task broken down and intensely studied. The theory that no - one person can know everything is still valid, but also all these little compartments of information will build up a super, well researched picture.
Here's the actual real bona-fide proof that Alien's exist and that's not a joke, that's reality but it comes with a twist. This awesome video below was leaked and because of that, we can't verify it as real or otherwise.
This UFO crash was and still is the most famous UFO event to ever have happened in history. I'm quite sure that it's a prime target for anyone looking to poke fun at the believer's of UFOs and Aliens alike. But I honestly can't think of anything or any reason why someone would fake a video of the Roswell UFO? Unless money is promised or paid up front even for a found footage style of Roswell video, then why would someone fake a convoluted prank like this? I might have just answered my own question there because money is the biggest motivation alway's.
What's your thought's on this video and the supposed crashed and recovered UFO debris? Just remember that the US Government declared that a UFO had been recovered, but the very next day they retracted that story, so just remember that they could have been told by the power's that be to retract that statement, now!
Please share your thought's and opinions also any ideas that you might have about this amazing UFO Spaceship that crashed and was recovered in Roswell New Mexico. I'd also appreciate it if you could share this post with someone who you think would appreciate it, cheers.
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The first 'living robots' that can REPRODUCE: Microscopic organisms made from frog cells assemble 'babies' in their Pac Man-shaped mouths – in breakthrough that could one day be used to destroy cancer cells
The first 'living robots' that can REPRODUCE: Microscopic organisms made from frog cells assemble 'babies' in their Pac Man-shaped mouths – in breakthrough that could one day be used to destroy cancer cells
Frog stem cells, shaped using artificial intelligence, will spontaneously replicate
They gather single cells inside a Pac-Man-shaped 'mouth' and release 'babies'
Self-replicating living bio-robots could allow more personalised drug treatment
In a potential breakthrough for regenerative medicine, scientists have created the first-ever living robots that can reproduce.
The millimetre-sized living machines, called Xenobots 3.0, are neither traditional robots nor a species of animal, but living, programmable organisms.
Made from frog cells, the computer-designed organisms, created by a US team, gather single cells inside a Pac-Man-shaped 'mouth' and release 'babies' that look and move like their parents.
Self-replicating living bio-robots could enable more direct, personalised drug treatment for traumatic injury, birth defects, cancer, ageing and more.
Scroll down for video
Xenobots 3.0 can gather hundreds of single cells, compress them and assemble them into 'babies' released from their Pac-Man-shaped mouths
WHAT ARE XENOBOTS?
Xenobots are neither a traditional robot nor a known species of animal, but a living, programmable organism.
They are made out of adapted stem cells from Xenopus laevis, an African species of frog.
Their shape has been designed by a computer to be able to replicate over multiple generations.
No animal or plant known to science replicates in this way.
Xenobots will help developed computer-designed organisms for intelligent drug delivery.
Xenobots are the work of biologists and computer scientists at Tufts University and the University of Vermont (UVM), who have detailed their creation in a new study.
Xenobots 3.0 follow the original Xenobots, reported in 2020 as the first living robots, and Xenobots 2.0, which can self-propel using hair-like 'legs' called cilia and have the ability to keep memories.
'We found Xenobots that walk. We found Xenobots that swim. And now, in this study, we've found Xenobots that kinematically replicate,' said study author Joshua Bongard, a computer scientist and robotics expert at the University of Vermont.
'We've discovered that there is this previously unknown space within organisms, or living systems, and it's a vast space.'
Xenobots will help develop computer-designed organisms for intelligent drug delivery, according to the team.
'If we knew how to tell collections of cells to do what we wanted them to do, ultimately, that's regenerative medicine – that's the solution to traumatic injury, birth defects, cancer, and aging,' said Michael Levin at Tufts University.
'All of these different problems are here because we don't know how to predict and control what groups of cells are going to build. Xenobots are a new platform for teaching us.'
An AI-designed, Pac-Man-shaped 'parent' organism (in red) beside stem cells that have been compressed into a ball - the 'offspring' (green)
In 2020, the scientists revealed they'd hand-built the original computer-designed Xenobots, adapted from stem cells of Xenopus laevis, a species of frog found in parts of Africa.
WHAT ARE STEM CELLS?
Stem cells are special human cells that have the ability to develop into many different cell types, from muscle cells to brain cells.
In some cases, they also have the ability to repair damaged tissues.
Stem cells are divided into two main forms – embryonic stem cells and adult stem cells.
Embryonic stem cells can become all cell types of the body because they are pluripotent – they can give rise to many different cell types.
Adult stem cells are found in most adult tissues, such as bone marrow or fat but have a more limited ability to give rise to various cells of the body.
Meanwhile, induced pluripotent stem cells (iPSCs) are adult cells that have been genetically reprogrammed to be more like embryonic stem cells.
Stem cells – which can turn into any tissue or organ – were harvested from the embryos of the frogs and left to incubate.
Then, with tiny forceps and an even smaller electrode, a microsurgeon cut and joined the single cells under a microscope into the shapes specified by a computer.
Assembled into body forms never seen in nature, the cells began to work together, powered by embryonic energy stores.
At the time, they showed that the bots were programmed to perform a range of tasks including delivering medicine directly to a point in the body.
This new generation – Xenobots 3.0 – uses stem cells from the same frog species.
Xenobots 3.0 can gather hundreds of single cells, compress them and assemble them into 'babies' released from their Pac-Man-shaped mouths.
A few days later, these 'babies' become new Xenobots that look and move just like their 'parents'.
And then these new Xenobots can go out, find cells, and build copies of themselves – and the process happens over and over again.
In a Xenopus laevis frog, these embryonic stem cells would usually develop into skin.
'They would be sitting on the outside of a tadpole, keeping out pathogens and redistributing mucus,' said Levin.
'But we're putting them into a novel context. We're giving them a chance to reimagine their multicellularity.
'These cells have the genome of a frog, but, freed from becoming tadpoles, they use their collective intelligence, a plasticity, to do something astounding.
Close-up of three young African clawed frogs (Xenopus laevis). Embryonic stem cells from this species were used to create the 'Xenobots'
On its own, the Xenobot parent, made of some 3,000 cells, forms a sphere – but it can't reproduce effectively over several generations.
'These can make children but then the system normally dies out after that,' said Sam Kriegman at Tuft's. 'It's very hard, actually, to get the system to keep reproducing.'
So, the team used a computer – specifically an artificial intelligence (AI) algorithm on the Deep Green supercomputer cluster at UVM.
The algorithm was able to test billions of body shapes in simulation – triangles, squares, pyramids, starfish – to find ones that replicate.
'We asked the supercomputer at UVM to figure out how to adjust the shape of the initial parents, and the AI came up with some strange designs after months of chugging away, including one that resembled Pac-Man,' said Kriegman.
'It's very non-intuitive. It looks very simple, but it's not something a human engineer would come up with. Why one tiny mouth? Why not five? We sent the results to Doug and he built these Pac-Man-shaped parent Xenobots.
A simulation of a computer designed organism collecting stem cells in the environment (left) accurately predicts the behaviour of the system in vitro (right)
'Then those parents built children, who built grandchildren, who built great-grandchildren, who built great-great-grandchildren.'
In other words, the Pac-Man design greatly extended the number of generations.
In response to any ethical concerns the public might have, the team stress Xenobots are entirely contained in a lab, are easily extinguished, and are vetted by federal, state and institutional ethics experts.
'This is an ideal system in which to study self-replicating systems,' said Bongard. 'We have a moral imperative to understand the conditions under which we can control it, direct it, douse it, exaggerate it.
It's important, for society as a whole, that we study and understand how this works.'
STEM CELL ADVANCE COULD FIX A BROKEN HEART, SCIENTISTS SAY
A breakthrough stem cell injection could one day help cure faulty hearts, according to scientists.
Previous attempts to regenerate hearts this way have faltered because the cells struggle to adapt to their new environment.
Researchers at University College London have figured out how to keep stem cells alive for longer in the heart by first growing them on to miniature spheres.
The size of the microspheres means they can be injected into heart muscle. The researchers say their method, which was tested in rats, could help cure heart failure.
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The world's first 'living robots' that can now replicate themselves
The world's first 'living robots' that can now replicate themselves
Scientists have created astonishing new “living programmable organism” a super-sophisticated robot capable of self-replication.
The Xenobots, computer-designed bio-robots, were adapted from frog stem cells and have now been programed to self replicate, spawning ‘babies’ from their Pac-Man-like mouths. Then these new Xenobots can go out, find cells, and build copies of themselves. Again and again.
They hope that the self-generating Xenobots could advance personalized drug treatment for cancers, traumatic injuries, birth defects, and other major health issues.
But is it the future of modern medicine? Technology futurist Ian Khan cautions against excessive optimism or excitement blinding us to the risks involved in the dawning technology. Robots that reproduce themselves 'aren't giant monsters — yet'
By creating these self-replicating "living robots," the scientists are essentially answering the idea that self-replicating alien probes, known as von Neumann probes, do exist.
These alien robotic probes could explore our galaxy and self-replicate themselves from interstellar dust and gas, after which the parent and child probes would each set off for a different star, where they would look for signs of life and then self-replicate themselves again.
Mathematicians in Scotland calculate that "self-replicating" alien spacecraft could already have explored our solar system and may still be here but undetectable to our current technologies.
According to some recent calculations, the massive new observational platform, The new Five-hundred-meter Aperture Spherical Radio Telescope (FAST) might be able to detect swarms of von Neumann probes relatively far away from the sun.
Currently, human civilization is thought to be around a .75 on the Kardashev scale which perhaps explains that we as humans are only just beginning to understand how to make new forms of self-replication products, and certainly don't have the technology yet how to make self-replicating 'Neumann probes' in space which according to Michio Kaku could be Nano Ships.
Video: the first living, AI-designed "Xenobots" that can self-replicate.
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- Gemiddelde waardering: 0/5 - (0 Stemmen) Categorie:SF-snufjes }, Robotics and A.I. Artificiel Intelligence ( E, F en NL )
UFO filmed over Farmington, Utah 27-Nov- 2021
UFO filmed over Farmington, Utah 27-Nov- 2021
This bright unidentified flying object was filmed over Farmington, Utah on 27th November 2021.
Witness report:
My wife and I were headed home from a family dinner on Saturday, November 27th. On our way to get onto Interstate 15, we both noticed a VERY bright light above the mountain, in the sky. My wife asked that I stop the car so she could look at it. I did. We watched it for maybe 5 minutes total. It was large. It was not a star nor a radio tower as it was clearly OFF/Above the wasatch mountain range. I took videos and pictures. When we got onto the interstate to go home, it was gone.
GEZICHT OP MARS: OPTISCHE ILLUSIE OP DE RODE PLANEET INTRIGEERT AL 45 JAAR 14 november 2021Tim Kraaijvanger In 1976 fotografeerde de Viking 1-orbiter een bijzondere berg op Mars. Deze berg had de vorm van een gezicht. Was dit een buitenaards kunstwerk of
GEZICHT OP MARS: OPTISCHE ILLUSIE OP DE RODE PLANEET INTRIGEERT AL 45 JAAR
Tim Kraaijvanger
In 1976 fotografeerde de Viking 1-orbiter een bijzondere berg op Mars. Deze berg had de vorm van een gezicht. Was dit een buitenaards kunstwerk of een optische illusie?
De planeet Mars spreekt al eeuwen tot de verbeelding. Zou er leven zijn op de rode planeet? Of zijn we helemaal alleen in het zonnestelsel? Het is nu lastig voor te stellen, maar voor de jaren zestig wisten wetenschappers erg weinig over het zusje van de aarde. Er werden diverse pogingen gedaan om een ruimtevaartuig naar Mars te sturen, maar verschillende missies mislukten. Pas in 1965 slaagde de Amerikaanse Mariner 4 er in om langs de rode planeet te vliegen en leerden we meer over de vierde planeet van het zonnestelsel. Tien jaar later zette de Viking 1-lander als eerste ruimtevaartuig voet op Mars en kregen we voor het eerst unieke beelden te zien vanaf het Martiaanse oppervlak.
In de zoektocht naar een geschikte landingsplaats fotografeerde de Viking 1-orbiter verschillende gebieden op Mars, waaronder Cydonia. Op één van de foto’s was een tafelberg te zien met een menselijk gezicht. De foto verscheen in alle kranten en werd gezien door veel mensen als hét bewijs van het bestaan van leven op Mars. Natuurlijk wisten NASA-wetenschappers wel beter en dachten zij al vanaf het begin dat het gezicht een illusie was, veroorzaakt door licht en schaduw. Dit wordt ook wel pareidolie genoemd.
De beroemde berg Cydonia Mensa op Mars, beter bekend als het ‘Gezicht op Mars’.
Wat is pareidolie? Pareidolie is een psychisch verschijnsel waarbij men in alledaagse voorwerpen gezichten herkent. Dat komt omdat het menselijk brein nu eenmaal sterk geneigd is overal iets herkenbaars van te maken. Dit komt goed van pas bij het herkennen van vormen die op eventueel gevaar kunnen wijzen, zoals bijvoorbeeld het silhouet van een roofdier. Maar soms loopt ons brein een beetje te hard van stapel en ziet het verbanden of patronen die er niet zijn. Zo zien sommige mensen allerlei dieren in wolken of bijvoorbeeld een gezichtje in de maan. Overigens is er ook een verschijnsel dat auditieve pareidolie heet. In dat geval hoor je een mondegreen (een zogenoemde ‘mama appelsap’), zoals “waar is toch dat zebrahondje voor” in Lambada van Kaoma.
De afgelopen decennia hebben diverse NASA-ruimtemissies prachtige foto’s gemaakt van nevels, sterrenstelsels, stellaire kraamkamers en planeten. Ieder weekend halen we een indrukwekkende ruimtefoto uit het archief. Dit is het tweede artikel in de reeks, maar binnenkort kun je alle foto’s terugvinden op deze pagina.
Optische illusie Uiteindelijk zijn er betere foto’s gemaakt van het Gezicht op Mars, o.a. door de Mars Odyssey in 2001. Deze foto zie je hieronder. En wat blijkt: het gaat inderdaad om een optische illusie. Cydonia Mensa is een doodgewone twee kilometer lange geërodeerde tafelberg. Geen creatie door Marsmannetjes, maar na 45 jaar spreekt de allereerste foto nog steeds tot de verbeelding.
Gezicht van Ghandi, een geheime basis en meer vondsten op Mars De afgelopen tientallen jaren zijn er meer optische illusies gespot op Mars, zoals het gezicht van Ghandi en een geheime basis. In 2010 fotografeerde de Mars Reconnaissance Orbiter zelfs bomen op de rode planeet.
Een ruimtevaart-enthousiasteling uit Italië heeft via Google Mars het gezicht van de Indiase leider Mahatma Gandhi ontdekt op de rode planeet. Met behulp van satellietfoto's heeft Google Mars onze buurplaneet in kaart gebracht. Ruimtevaartliefhebbers speuren de kaarten af in de hoop opvallende zaken te vinden. Zo heeft de Italiaan naar eigen zeggen ook al ingangen tot ondergrondse tunnels en ru�nes van steden op Mars gevonden. Een universiteit in Arizona onderzocht de ontdekking en kwam dankzij foto's in hoge resolutie erachter dat het gezicht eigenlijk een diepe krater is.
In diepe, donkere maankraters ligt mogelijk CO2-ijs opgeslagen
In diepe, donkere maankraters ligt mogelijk CO2-ijs opgeslagen
Beeld: De mogelijke vindplaatsen van rijpafzettingen op de donkere bodems van kraters nabij de zuidpool van de maan.
(NASA's Goddard Space Flight Center)
In de donkere kraters rond de zuidpool van de maan kan niet alleen bevroren water, maar ook bevroren koolstofdioxide te vinden zijn. Dat blijkt uit nieuw onderzoek gebaseerd op gegevens van NASA’s Lunar Reconnaissance Orbiter (LRO).
Dat is goed nieuws voor toekomstige bemande maanmissies. Na water is koolstof waarschijnlijk de belangrijkste hulpbron op de maan. Het kan worden gebruikt voor de productie van raketbrandstof, biomaterialen en staal.
In kraters rond de ijskoude polen van de maan kunnen zich allerlei vluchtige stoffen ophopen. De maan heeft weliswaar geen atmosfeer, en dus ook niet veel water, maar er wordt wel geregeld water en koolstof aangevoerd door kometen en koolstofhoudende (micro)meteorieten.
Veel van de aldus gevormde moleculen verdwijnen uiteindelijk de ruimte in, maar moleculen die bij toeval in diepe kraters rond de polen van de maan verzeild raken, kunnen ter plaatse neerslaan als ijs. De temperaturen aldaar zijn, bij gebrek aan invallend zonlicht, dermate laag dat de kraters als ‘koudevallen’ fungeren.
Waterijs
Meetgegevens van het Diviner Lunar Radiometer Experiment van de LRO laten zien dat de temperaturen rond de polen van de maan laag genoeg zijn om CO2-moleculen ‘in de val’ te laten lopen. Theoretisch zouden zich hier dan ook grote hoeveelheden CO2 kunnen hebben opgehoopt, maar of dat ook werkelijk zo is, zal nog moeten blijken. Vast staat wel dat een andere NASA-maansonde in 2009 CO2 heeft gedetecteerd in de pluim van materiaal die opstoof nadat een rakettrap (doelbewust) was ingeslagen bij de zuidpool van de maan.
De totale oppervlakte aan CO2-koudevallen rond de zuidpool van de maan bedraagt ongeveer 200 vierkante kilometer. Ter vergelijking: de koudevallen van waterijs beslaan bijna 14.000 vierkante kilometer. De eventuele concentraties van CO2 zijn dus heel schaars, maar de meeste koudevallen zijn te vinden op de bodem van de relatief gemakkelijk toegankelijke krater Amundsen. De temperatuur aldaar komt nooit boven de –212 °C uit, dus zal het wel een uitdaging worden om dit gebied te verkennen.
The new TOLIMAN space telescope could launch in the mid-2020s.
A new space telescope mission unveiled today (Nov. 16) will look for habitable planets in the Alpha Centauri system, our sun's closest stellar neighbors.
The new mission, called TOLIMAN after an ancient Arabic-derived name for Alpha Centauri, will carry a novel telescope fitted with a so-called diffractive pupil lens that spreads starlight into a flowerlike pattern. This unique lens will make it easier for astronomers using the scope to detect tiny irregularities in a stars' movements that are usually caused by the gravitational influence of orbiting planets, according to a statement by Breakthrough Initiatives, which is backing the mission.
"Even for the very nearest bright stars in the night sky, finding planets is a huge technological challenge," Eduardo Bendek, an optical engineer at NASA's Jet Propulsion Laboratory, a collaborator on the mission, said in the statement.
"Our TOLIMAN mission will launch a custom-designed space telescope that makes extremely fine measurements of the position of the star in the sky. If there is a planet orbiting the star, it will tug on the star betraying a tiny, but measurable, wobble," Bendek said.
This image simulates a view of Alpha Centauri, the nearest star system to the sun, as it could be seen by the new planet-hunting space telescope TOLIMAN. (Image credit: Breakthrough Initiatives)
Alpha Centauri is the closest solar system to Earth and it has three stars, two of which are like our sun. The third star is a red dwarf called Proxima Centauri, a cool but long-lived type of a star that is the most common in the universe.
This red dwarf is known to have at least two exoplanets, one of which appears to be fairly similar to Earth.
But so far, this intriguing star system, just four light-years away from us, has avoided detailed scientific scrutiny, despite the fact that the planets around these stars could present the most convenient destination for humankind outside of our own solar system.
While, for now, a human mission to Alpha Centauri remains in the realm of science fiction, the TOLIMAN telescope will at least attempt to answer some of the most fundamental and pressing questions about its planets. Most importantly, scientists hope to use the new scope to investigate whether these far-off worlds might indeed harbor life, or perhaps provide the right conditions for its survival.
"Our nearest stellar neighbors — the Alpha Centauri and Proxima Centauri systems — are turning out to be extraordinarily interesting," Pete Worden, executive director of the Breakthrough Initiatives, said in the statement. "The TOLIMAN mission will be a huge step toward finding out if planets capable of supporting life exist there."
The proposed Toliman space telescope to seek out habitable planets around Alpha Centauri. (Image credit: Breakthrough Initiatives)
The mission will focus on the habitable zone around the system's three stars, a region of space in the star's vicinity where liquid water could exist.
"These nearby planets are where humanity will take our first steps into interstellar space using high-speed, futuristic, robotic probes," Pete Klupar, chief engineer of Breakthrough Watch, a branch of Breakthrough Initiatives, said in the statement. "If we consider the nearest few dozen stars, we expect a handful of rocky planets like Earth orbiting at the right distance for liquid surface water to be possible."
Professor Peter Tuthill of the Sydney Institute for Astronomy, who leads the development of the mission, added that TOLIMAN will begin answering the questions about the nature of these intriguing worlds.
"Getting to know our planetary neighbors is hugely important," Professor Tuthill said. "These next-door planets are the ones where we have the best prospects for finding and analyzing atmospheres, surface chemistry and possibly even the fingerprints of a biosphere — the tentative signals of life."
This wide-field view of the sky Alpha Centauri star system and its surroundings was created from photographic images forming part of the Digitized Sky Survey 2. Image released Oct. 17, 2012. (Image credit: ESO/Digitized Sky Survey 2)
The team, which also includes experts from Australian space-tech firm Saber Astronautics, began working on the mission in April this year, according to the statement.
The mission received $788,000 ($576,000) from the Australian government and is expected to be ready for science in the mid-2020s.
"Our plan is for an agile low-cost mission that delivers results by about the middle of the decade," Tuthill said.
Dulce is a pleasant and inviting town that is situated in New Mexico’s Rio Arriba County. It’s a small town of less than 3,000 people and which is around thirteen square miles in size. It was founded in the latter part of the 19th century and, today, is the home of the Jicarilla Apache Nation. There is nothing particularly unusual or out of the ordinary about Dulce – at least, not at first glance. Look a little bit closer, though, and you’ll find yourself in a world filled with dark secrets and terrifying tales of the cosmic and conspiratorial kind. And, “by closer,” I mean below your feet. Way below your feet; maybe even miles down. Since the late 1970s, rumors have swirled to the effect that deep within the massive Archuleta Mesa, which dominates the town, there is a secret and futuristic facility that has been out of bounds to the U.S. Government since 1979. Today, it’s said that the installation is under the complete control of hostile and deadly extraterrestrials – the so-called “Greys” of UFO lore, those dwarfish, black-eyed, large-headed entities that are practically part of popular culture. So the story goes, it was in seventy-nine that a violent confrontation between military personnel and the aliens broke out – and we were the losers. The base, which was once a hub of human / alien interaction, is now theirs – and theirs alone. Witnesses talk of people going missing, and of vast, cavern-like rooms in which people are devoured by voraciously hungry aliens. Are the tales true? How did the rumors begin? Let’s take a trip back in time to the mid-to-late1970s. Paul Bennewitz was a scientist who, at the time, ran a company in Albuquerque called Thunder Scientific – a company that quite literally backed onto the well-guarded fences of Kirtland Air Force Base. It was around 1978 that Bennewitz – who had a preexisting interest in UFOs – began to hear of more and more so-called alien abduction events in and around Albuquerque and further up into northern New Mexico.
Greg Bishop at the grave of Paul Bennewitz
(photo courtesy of Nick Redfern)
On top of that, strange signals were picked up by Bennewitz on his radio equipment. He saw weird-looking aircraft soaring silently across the skies over Kirtland late at night and in the early hours of the morning. He was given accounts of abductees being secretly taken to Kirtland and grilled by U.S. intelligence agents, who were deeply concerned about the growing number of people seemingly being kidnapped from their homes and subjected to terrifying and bizarre experiments of a genetic nature. As the weeks and months progressed Bennewitz came to believe something incredible: that deadly ETs were secretly getting ready to take over the planet. They were planning on doing so from their command post deep below the town of Dulce. Worldwide invasion and the enslavement of the human race were lurking just around the corner – as Bennewitz saw it, at least. Suspecting that the end really was possibly getting nearer and nearer, Bennewitz prepared a dossier on his findings and theories. He called it Project Beta. Bennewitz mailed copies of the controversial report to the FBI, to the CIA, to the NSA, to every branch of the military, and even to the White House. People had to be warned – and warned now, Bennewitz wrote.
Notably, Bennewitz was not written off as a crank, as many might expect him to have been. In fact, quite the opposite was the case: intelligence agents at Kirtland Air Force Base quickly established a secret liaison with Bennewitz. They warned him about digging any further into things that could be dangerous – even to Bennewitz’s life, no less. But, those same agents also confided in Bennewitz something incredible: that he was on the right track. They did all they could to keep Bennewitz quiet, almost to the point of begging him to keep his mouth shut on what he knew. For Bennewitz, though, this was like a red rag to a bull: the somewhat veiled threats to keep his nose out of things only served Bennewitz to push further for answers. As a result, U.S. intelligence fed Bennewitz more and more horror stories of what was supposedly going on several miles below Dulce, including tales of the aliens using captured people – in their thousands – as food. It’s no wonder – given the nature of the stories and that they were coming directly from the military – that Bennewitz became more and more paranoid. Eventually, he became completely unhinged, and to the point where he ended up spending time in a local medical facility, where he was treated for stress, anxiety, and, finally, what practically amounted to a complete mental collapse. Thankfully, he recovered, but was careful kept his distance from Ufology.
(Nick Redfern)
Back in the 1970s and 1980s, black helicopters were often seen at Dulce
Today, some UFO researchers dismiss Bennewitz’s theories and conclusions – preferring, instead, to suspect that Bennewitz had stumbled on not alien activity but top secret programs of the U.S. military and intelligence community. By steering Bennewitz down a path filled with fictitious tales of dangerous aliens, the government would be able to divert him away from the far more down to earth truth, so the theory goes. On the other hand, Bennewitz, who died in 2003, still has a huge following of UFO sleuths who are absolutely certain that below Dulce something abominable is going on – and has been for years. Maybe even for centuries. While Bennewitz’s Project Beta report does read like something straight out of the early years of The X-Files, there is absolutely no doubt that Dulce itself is a very weird place, one where strange activity has been reported for years. For example, in the 1960s the area around Dulce became the site of a classified U.S. Atomic Energy Commission program called Gasbuggy. It was part of a larger operation code-named Plowshare. The plan was to explode a significantly-sized atomic device, underground, deep below the Carson National Forest, which just happens to be only a few miles from Dulce. The reason was to try and access massive and precious supplies of natural gas. The bomb was detonated on December 10, 1967 – more than four thousand feet below the surface. Although the Plowshare program continued in the area until the late 1970s, even today digging underground in the area is strictly forbidden.
In light of all of Bennewitz’s findings, it’s not at all surprising that there are those in the UFO community who believe that the Plowshare program was actually a cover story – one created to mask the fact that the U.S. Government had tried to destroy the alien base under Dulce with a nuclear weapon. That just such a weapon really was exploded, underground, and only a few minutes’ drive from Dulce, only ensures that the rumors of an alien presence in the area continue to thrive. And, that people are warned not to dig underground in the area only adds to the suspicions that there is something very sinister going on below Dulce. Not only that, in 1989, and thanks to the provisions of the Freedom of Information Act, the FBI declassified into the public domain its extensive files on so-called “cattle mutilations” in the Dulce area, all of which occurred in the 1970s. Such mutilations have been reported all across the county and since 1967, but Dulce is renowned for the huge number of cases in its midst, as the FBI learned. Cattle are found lacking major organs. Blood is removed from the bodies in astonishingly quick time. And, black and unmarked helicopters are seen in the areas of mutilation – as are strange lights in the sky, and UFOs too.
Incredibly, all of these issues are discussed at length in the FBI’s official files on the mutilations in and around Dulce, all of which can be read online at the FBI’s website, The Vault. So, yes, there is definitely something strange going on at Dulce – and something which has been going on for an extraordinarily long time. Of course, the big question is this: is all the above true or is it simply a cover to hide top secret experiments of a very home-grown type?
An incredible discovery was made off the coast of California when an ancient mammoth tusk was found in 10,000 feet of water. The tusk belonged to a Columbian mammoth that was alive more than 100,000 years ago.
Columbian mammoths (also known as Mammuthus columbi) were huge, measuring 4 meters (13 feet) at the shoulders and weighing as much as 10 tonnes (22,000 pounds or 10,000 kilograms). They lived as far as the northern part of the United States all the way down to Costa Rica during the Pleistocene epoch (2.6 million to 11,700 years ago). They had very long curved tusks with four molars that were replaced six times throughout their lifetime. Incredibly, the largest known tusk that belonged to a Columbian mammoth measured 4.9 meters (16 feet). These creatures may have lived as long as 80 years.
Image by Charles R. Knight in 1909.
(Via Wikipedia)
As for the most recent discovery, the tusk was spotted in 2019 by the Monterey Bay Aquarium Research Institute (MBARI) who was exploring the ocean when they found what appeared to be an elephant tusk. Researchers then returned to the site this summer and recovered the tusk and realized that what they had in their possession belonged to a Columbian mammoth.
The tusk, which measured one meter in length (3.3 feet), was well-preserved due to the cold, high-pressure environment of the ocean. Thanks to computed tomography (CT) scans, the experts were able to determine that the creature lived over 100,000 years ago. This means that it is one of the oldest and best preserved mammoth tusks that have ever been found in the area.
Scientist Terrence Blackburn explained how they determined how old it was, “Our age estimate on the tusk is largely based on the natural radioactive decay of certain uranium and thorium isotopes imparted to the tusk from the ocean.”
As a matter of fact, it is quite rare to find any mammoth remains more than “tens of meters” underneath the water (the tusk mentioned in this article was found 3,048 meters underwater). “This specimen’s deep-sea preservation environment is different to anything we have seen elsewhere,” said palaeontologist Daniel Fisher.
Researchers are hoping that the tusk will reveal even more information regarding the life of the Columbian mammoth as explained by Mr. Blackburn, “Mammoth remains from continental North America are particularly rare, and so we expect that DNA from this tusk will go far to refine what we know about mammoths in this part of the world.”
NASA Simulation Shows What Happens When Stars Get Too Close to Black Holes
NASA Simulation Shows What Happens When Stars Get Too Close to Black Holes
What happens to a star when it strays too close to a monster black hole? Astronomers have wondered why some stars are ripped apart, while others manage to survive a close encounter with a lurking black hole, only a little worse for wear.
To figure out the dynamics of such an event, scientists built a supercomputer simulation and tested it out on eight different types of stars. The stars were sent towards a virtual black hole, 1 million times the mass of the Sun.
What they found was surprising.
The stars they modeled ranged in size from about one-tenth to 10 times the Sun’s mass, all with varying densities. All the stars were sent to about 24 million miles away from the black hole at their closest.
The good news is that the Sun-like star survived its close approach (good news for us, anyway). The other stars that survived had 0.15, 0.3, and 0.7 solar masses. But the stars that were 0.4, 0.5, and 3, and 10 times the Sun’s mass were completely torn apart.
Why the disparity?
The researchers realized it wasn’t the star’s size that made the difference for its survival. Instead, the difference between survival and destruction was dependent on the star’s internal density. You can see the details in this video from NASA:
Watch eight model stars stretch and deform as they approach a virtual black hole 1 million times the mass of the Sun. The black hole’s gravity rips some stars apart into a stream of gas, a phenomenon called a tidal disruption event. Others manage to withstand their close encounters. These simulations show that destruction and survival depend on the stars’ initial densities. Yellow represents the greatest densities, blue the least dense.
Credit: NASA's Goddard Space Flight Center/Taeho Ryu (MPA)
Music: "Lava Flow Instrumental" from Universal Production Music
In the simulation above, yellow represents the greatest densities, blue the least dense.
These simulations were led by Taeho Ryu, from the Max Planck Institute for Astrophysics in Garching, Germany. NASA says these simulations are the first to combine the physical effects of Einstein’s general theory of relativity with realistic stellar density models.
The results will help astronomers estimate how often full tidal disruptions occur in the universe and will aid them in building more accurate pictures of these catastrophic events.
Lead image caption: From left to right, this illustration shows four snapshots of a virtual Sun-like star as it approaches a black hole with 1 million times the Sun’s mass. The star stretches, looses some mass, and then begins to regain its shape as it moves away from the black hole. Credit: NASA’s Goddard Space Flight Center/Taeho Ryu (MPA)
Luis Elizondo on unidentified aerial phenomena, extraterrestrials and the Pentagon’s UFO programme
Luis Elizondo on unidentified aerial phenomena, extraterrestrials and the Pentagon’s UFO programme
Luis Elizondo ran the Pentagon’s secretive UFO/UAP programme for a decade… We had some questions. Early last year, the US government officially acknowledged videos of “unidentified aerial phenomena” filmed by its Navy pilots. Was it evidence of extraterrestrials? Here the former Pentagon intelligence officer in charge of investigating these incidents, reveals (almost) all he knows at GQ Heroes…
A Huge Comet Visible With Naked Eyes Is Coming & You Shouldn't Miss It | Comet Leonard 2021
A Huge Comet Visible With Naked Eyes Is Coming & You Shouldn't Miss It | Comet Leonard 2021
Comet Leonard is the comet of the year. It will be visible to naked eyes in December 2021. Comet A1 Leonard was discovered on 3rd January 2021 and at that time, it was about 5 astronomical units away. But now, the comet has come closer to the Earth and will be easily visible to naked eyes in December from the Northern and Southern Hemispheres.
It will reach an apparent magnitude of +4 and hence can be seen through unaided eyes and even binoculars or a small telescope. Comet Leonard might reach an apparent magnitude of +1, which means it might become way brighter than predicted. The best day to see comet Leonard with naked eyes is 6 December with it will be just 5 degrees away from Bootes' brightest star, Arcturus. This video explains in detail how to see comet Leonard with naked eyes.
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Over mijzelf
Ik ben Pieter, en gebruik soms ook wel de schuilnaam Peter2011.
Ik ben een man en woon in Linter (België) en mijn beroep is Ik ben op rust..
Ik ben geboren op 18/10/1950 en ben nu dus 74 jaar jong.
Mijn hobby's zijn: Ufologie en andere esoterische onderwerpen.
Op deze blog vind je onder artikels, werk van mezelf. Mijn dank gaat ook naar André, Ingrid, Oliver, Paul, Vincent, Georges Filer en MUFON voor de bijdragen voor de verschillende categorieën...
Veel leesplezier en geef je mening over deze blog.
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