NASA warns: "If humanity does not change, Aliens Might Destroy Humanity to Protect Other Species"

NASA warns: "If humanity does not change, Aliens Might Destroy Humanity to Protect Other Species"
Those hoping that the first extraterrestrial with which humanity will be to establish the first contact are friendly creatures as the film ET, may be disappointed.
In a study conducted by researchers at the ' University of Pennsylvania and the NASA and published in the academic journal Acta Astronautics ( Would Contact with Extraterrestrials Benefit or Harm Humanity? A Scenario Analysis ), scientists claim that intelligent creatures other planetary systems could reach Earth to destroy humanity "in order to make the galaxy a better place to live" and protect other civilizations from the destructive fury of man.
IfIf we take into account the changes climaticiche mankind is causing the planet, environmental degradation, violence and wars, we realize that humanity is characterized as a civilization out of control.
The extraterrestripotrebbero consider man as a danger to the galaxy and could consider the possibility to deliver a pre-emptive strike on our planet and for all of us to sound the alarm bell. But this is only a hypothesis.
The researchers say the aliens might even consider the possibility of enslaving humanity, or use it as food!
- Other possible scenarios

It may not rank as the most compelling reason to curb greenhouse gases, but reducing our emissions might just save humanity from a pre-emptive alien attack, scientists claim.
Watching from afar, extraterrestrial beings might view changes in Earth's atmosphere as symptomatic of a civilisation growing out of control – and take drastic action to keep us from becoming a more serious threat, the researchers explain.
This highly speculative scenario is one of several described by a Nasa-affiliated scientist and colleagues at Pennsylvania State University that, while considered unlikely, they say could play out were humans and alien life to make contact at some point in the future.
Shawn Domagal-Goldman of Nasa's Planetary Science Division and his colleagues compiled a list of plausible outcomes that could unfold in the aftermath of a close encounter, to help humanity "prepare for actual contact".
In their report, Would Contact with Extraterrestrials Benefit or Harm Humanity? A Scenario Analysis, the researchers divide alien contacts into three broad categories: beneficial, neutral or harmful.
Beneficial encounters ranged from the mere detection of extraterrestrial intelligence (ETI), for example through the interception of alien broadcasts, to contact with cooperative organisms that help us advance our knowledge and solve global problems such as hunger, poverty and disease.
Another beneficial outcome the authors entertain sees humanity triumph over a more powerful alien aggressor, or even being saved by a second group of ETs. "In these scenarios, humanity benefits not only from the major moral victory of having defeated a daunting rival, but also from the opportunity to reverse-engineer ETI technology," the authors write.
- Any guesses positive
But the report does not abandon us only to prospects bleak and apocalyptic. Scientists (their goodness) suggest other situations more optimistic. An alternative variant provides for the victory of human civilization against the invaders. This would allow humanity to get hold of extraterrestrial technologies to use to their own use.
A further variant is the possibility that extraterrestrials want to spontaneously share their knowledge with humanity and help us solve age-old problems like hunger, poverty and disease.
- But when could this happen?
Anything could happen in the next 20 years: "Humanity is entering a period in which its rapid expansion could be detected by an extraterrestrial intelligence. Combiamento the composition of Earth's atmosphere due to greenhouse gas emissions could be the signature of our presence in the galaxy.
But that aspect could have visitors galactic?
According to Andrei Finkelstein , director of the Institute of Astronomy of the Russian Academy of Sciences , the aliens are similar to humans. Quite possibly the extraterrestrials have a head, two arms and two legs, while the color of their skin may be different.
- It looks like a Hollywood movie
All these scenarios are very reminiscent of a film released in theaters around the world a few years ago and starring Keanu Reeves magistramente: The Day the Earth . In this charming remake of a film of the '60s, the American actor plays the character of Klaatu, an alien came to our planet to save Earth by man.

Its mission is to destroy humanity. At the end of the film (sorry reveal the ending to those who have not yet seen) the alien has moved with compassion and decided to give another chance to the human race. And this is what we hope will happen in real life, we hope that these aliens as well as having the head, legs and arms also have a heart. Unlikely it does not mean impossible!































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