Satellite imagery of an experimental military base that was missing from Google Maps for years is now available … but you'll have to go to New York City to see it.
Zondag 28 oktober 2018
This Week's Top Space Stories!
This Week's Top Space Stories!
By Doris Elin Salazar, Space.com Contributor
Photo Credit: Jeremy Harbeck/NASA
The Week's Top Space Stories
A mission began its seven-year journey to Mercury, scientists found the smallest known cannibal galaxy and a NASA scientist saw rectangular-shaped icebergs in Antarctica. These are just some of this week's top stories from Space.com.
Photo Credit: NASA/JPL illustration
1. NASA will stop trying to contact silent rover
The Opportunity Mars rover has been silent for 4 months, and NASA will soon end active efforts to contact the robot. Opportunity entered low-power mode following a major Martian dust storm that blocked out the sun and kept the rover from recharging on solar power.
2. Itsy bitsy cannibal galaxy
Two researchers detected the smallest known case of a galaxy eating another galaxy. In a new paper published on Oct. 11, the team found two different types of stars within a small nearby galaxy, and this was a sign that it had previously "eaten" a smaller neighbor.
Photo Credit: NASA
3. Chandra was down, now back up
NASA's Chandra X-ray Observatory went into "safe mode" last week because of a glitch. But this week, the space agency announced that Chandra's science operations got going again on Sunday (Oct. 21), after mission team members established a new configuration for the piece of the space telescope that had the glitch.
Photo Credit: Jeremy Harbeck/NASA
4. Tabular, dude
A picture of a rectangular-shaped iceberg recently went viral. The "tabular iceberg" came about when it and others calved off the Larsen C ice shelf in Antarctica and NASA scientist Jeremy Harbeck took an image of some such icebergs during an Oct. 16 research flight over the frigid continent.
Photo Credit: K. Retherford/SWRI/NASA/ESA
5. No signs of Jovian geyser engines
Scientists are now wondering if the features seen on the surface of Europa by NASA's Hubble Space Telescope were signs of water vapor, or not. Recently, researchers looked through existing data to find the heat signals of the hot sources that would support geysers on Jupiter's moon.
Photo Credit: iStock/Getty Images Plus
6. Little 'purple' men?
Life before green plants may have been purple, so alien life might be the same color. A new research paper argues that early life on Earth could have been purple, so that means if scientists are looking for biosignatures on distant worlds, they perhaps should start looking for signs of lavender life as well.
[Full Story: Extraterrestrial Life Could Be Purple]
[See Also: Salty Martian Water Could Have Enough Oxygen to Support Life]
[See Also: Salty Martian Water Could Have Enough Oxygen to Support Life]
Photo Credit: ESA-CNES-Arianespace
7. Mercury mission launched
Mercury is the destination of a joint Japanese-European mission that just launched from French Guiana. On Oct. 19 (Oct. 20 GMT) the BepiColombo mission took off and began its seven-year journey to the planet closest to the sun, and when it arrives it will separate into two spacecraft and circle Mercury for a year.
Photo Credit: NASA, ESA, the Hubble Heritage (STScI/AURA)-ESA/Hubble Collaboration, and A. Evans
(University of Virginia, Charlottesville/NRAO/Stony Brook University)
8. Signs of many gargantuan mergers spotted
A new study suggests that supermassive black holes — which can be the mass of millions of stars — probably collide and combine frequently. In 24 of the 33 objects the team studied, a particular signature appeared which is consistent with the existence of black holes tugging at each other.
[Full Story: Monster Black Hole Mergers May Be Common]
Photo Credit: Roscosmos
9. New space station crew might fly by December
At a meeting of the U.S. National Space Council on Oct. 23, NASA chief Jim Bridenstine said a new crew should launch up to the space station in December despite the Oct. 11 failure of a Russian Soyuz crew capsule during flight. That crew would consist of NASA astronaut Anne McClain, cosmonaut Oleg Kononenko and the Canadian Space Agency's David Saint-Jacques.
Photo Credit: NASA/Goddard/University of Arizona
10. No dust ahead? Check
NASA's OSIRIS-REx mission is currently approaching its subject: asteroid Bennu. To ensure that the spacecraft doesn't crash into the potential dust plumes or tiny moons from Bennu or a neighbor, mission scientists conducted safety scans.
Geschreven door peter om 21:52
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