How would we know whether there is life on Earth? This bold experiment found out

3 years ago by fossilesque to c/astronomy

Thirty years ago, astronomer Carl Sagan convinced NASA to turn a passing space probe’s instruments on Earth to look for life — with results that still reverberate today.

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rwtwm 6 points 3 years ago

That's a great piece. Thanks for sharing.

The fact that most of our signals for extra-terrestrial life are based on life on earth has always made me concerned we'd miss something. This has made me reconsider a little. We would miss life unlike earth's with our approach, but without an analogy like this to draw on, how could we know?

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A community for sharing astronomy-related news, content, research, photographs, etc.

When sharing photographs and articles, please make an effort to include source URLs.

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