Could life exist on Venus? Peptides survive harsh acid.
Researchers from MIT have discovered that peptides can remain stable in the harsh, acidic environment of Venus's clouds. This finding suggests that life could potentially exist in non-Earth-like conditions, expanding the criteria for habitability in the search for extraterrestrial life.
Why it matters
It challenges traditional astrobiological assumptions about the necessity of liquid water and Earth-like conditions for life.
The planet Venus is arguably the most mischievous planetary body in the solar system. This is because like Saturn’s largest moon, Titan, Venus is shrouded in a thick atmosphere that can’t be viewed with optical telescopes and require radar images to see the surface. Unlike Titan, whose atmosphere looks quite dull, Venus’s swirling and awe-inspiring clouds give observers the impression that its surface is covered in wonderous features. However, the truth is far from ideal, as Venus’s surface is a living hell with searing temperatures and crushing pressures. But, unlike its surface and Titan, Venus’s atmosphere provides many more ideal conditions, even Earth-like conditions. But while life would be hard to exist on its surface, could we find life in the atmospheric clouds of Venus?
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