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Posts tagged alien civilizations

June 26, 2015

 

planets

The Oldest Worlds    

Scientists recently discovered Earth‑sized planets orbiting a star more than 11 billion years old.

February 9, 2015

 

telescope mirrors from the James Webb telescope

Extraterrestrial Pollution

Air pollution might be the tell-tale sign of alien civilizations.

April 26, 2004

 

The Fermi Paradox

"Where Is Everybody?" Learn about the Fermi Paradox on this Moment of Science.

January 6, 2004

 

The Fermi Paradox

Are there really alien civilizations out there that we don't know about? Find out on this Moment of Science: "The Fermi Paradox".

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