In the next decade, space agencies plan to bring rock samples from Mars to Earth. But what if these rocks contain alien ...
A newly discovered mechanism could explain the shock finding last year that oxygen is produced by metallic nodules on the ...
That gap includes any really ancient microbes that might have otherwise been fossilized. Luckily, though, there's Mars.
Their discovery showed that even tucked away in our innards – in the walls of our stomachs, subjected to vinegar-like pH ...
If Mars ever hosted microorganisms in its bygone oceans, their fossils might still be preserved in minerals—and now, we have ...