November 6, 2013
How Astronomers Came to Think We are Probably Not Alone

To the average American, the news about NASA’s Kepler spacecraft discovering evidence of potentially “billions” of Earth-like planets in “habitable” solar orbits in the universe might feel like a paradigm-shifting moment. If there are billions of Earth-like planets out there, the possibility of life existing somewhere other than Earth suddenly goes from seeming like an odds-against to an odds-on notion. 
But to NASA’s scientists, that paradigm had shifted long before the headlines hit—indeed, before Kepler even launched.
Read more. [Image: NASA]

How Astronomers Came to Think We are Probably Not Alone

To the average American, the news about NASA’s Kepler spacecraft discovering evidence of potentially “billions” of Earth-like planets in “habitable” solar orbits in the universe might feel like a paradigm-shifting moment. If there are billions of Earth-like planets out there, the possibility of life existing somewhere other than Earth suddenly goes from seeming like an odds-against to an odds-on notion.

But to NASA’s scientists, that paradigm had shifted long before the headlines hitindeed, before Kepler even launched.

Read more. [Image: NASA]

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