Sentences with phrase «alien microbes once»

The 1996 discovery of carbonate structures in meteorite ALH - 84001 — which travelled to Earth from Mars more than 13,000 years ago — was hailed at the time as evidence that alien microbes once lived on the red planet.

Not exact matches

In 1996, a Martian meteorite (top) made headlines when researchers reported it might once have hosted alien microbes (bottom)-- a claim that has not found widespread support among scientists.