"The fact that terrestrial microbes are the Earth's best colonizers means we can never completely discount terrestrial ...

Scientists have found microorganisms crawling over a sample retrieved from the 200 million-mile-distant asteroid Ryugu. But ...

A scientist hopes to intercept signals from 'an alien civilization going about its business doing its thing' by looking for ...

Since the first modern SETI (Search for ExtraTerrestrial Intelligence) studies tried to detect alien transmissions in the ...