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Results tagged with life
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user 1278
Questions regarding life in the universe, especially the possibility of life outside our planet, or the influence of astronomical forces on life on Earth.
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How far away could we detect that Earth has life?
Depends on what you mean by detecting life. As is explained in this what-if post by Randall Munroe, the algae on earth will tell the aliens about us before we can tell them about us. … So, a partial answer to your questions would be to study the spectrum of every extra-solar planet found within the circumstellar habitable zone to look for signatures of tell-tale signs of life. …
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