Underground microbes ‘may have swarmed over ancient Mars’

But if they existed, these simple life forms would have altered the atmosphere so profoundly that they triggered a Martian Ice Age and snuffed themselves out, the researchers concluded.

Mon, 10 Oct, 2022 - 17:48

Marcia Dunn, Associated Press

Ancient Mars may have had an environment capable of harbouring an underground world teeming with microscopic organisms, scientists have reported.

But if they existed, these simple life forms would have altered the atmosphere so profoundly that they triggered a Martian Ice Age and snuffed themselves out, the researchers concluded.