Russian
внеземная жизнь Portuguese
extraterrestes Spanish
inteligencia extraterrestre Catalan
alienígena 
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New information has become available indicating the aliens have come in peace.
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Although, come to think of it, most aliens probably did not know.
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In other words, evidence that aliens have sent search probes to Earth.
4
Its secrecy still fuels speculation that it's where the government studies aliens.
5
It's her first real lead on how to talk to the aliens.
1
You're an alien life-form, you see. It was difficult to remain calm.
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By acquiring those new genes, this alien life-form had become part human.
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He said, We discovered the first alien life in our solar system.
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Astronomers' hopes of finding alien life on worlds near Earth were crushed.
5
Many think Europa's salty seas could harbor some sort of alien life.
1
They were followed by the Sak's Fifth Avenue display; nine small floats, each depicting life on another planet.
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That is, life on another planet must be thought of as being no different from what experience teaches you.
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If you found intelligent life on another planet, would you tell the public the truth or keep it a secret?
4
But what are the chances of intelligent life on another planet and could they travel through space to visit earth?
1
Sadly for believers in extraterrestrial life, there is a more mundane explanation.
2
They believe it is an important step in the search for extraterrestrial life.
3
Queloz also fielded inevitable questions about the possibility of extraterrestrial life.
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If mankind finds intelligent extraterrestrial life, what will happen to the world's religions?
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This weird life would the best possible analog for extraterrestrial life.
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The discovery of extraterrestrial life was the key event of the third millennium.
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Years later they reunite only to confront a vicious extraterrestrial life-form.
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He remained sceptical that the discovery was evidence of extraterrestrial life.
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What happens if you do find some kind of extraterrestrial life?
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He was a pioneer in exobiology, which investigates the possibility of extraterrestrial life.
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An abrupt culmination of everything you've dreamed about-contactwith extraterrestrial life?
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Unfortunately, we can't study extraterrestrial life to answer this question.
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These worlds could then be studied to determine if they could support extraterrestrial life.
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The only subject that makes her intently animated is, of all things, extraterrestrial life.
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The existence of extraterrestrial life long has been one of the paramount questions of science.
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Groups of scientists from widely scattered areas of expertise have become interested in extraterrestrial life.
