On: Asteroid Bennu samples have 14/20 amino acids foun...

[ahazred8ta]

> big implications for understanding the rise of life

That's quite a stretch. We've known since the 1950s that amino acids form spontaneously in a hydrogen-rich environment with ultraviolet light exposure. Which matches both the protoplanetary disk and the early Earth. This is just physical confirmation of what the blackboard nerds have been expecting for decades.

[LarsDu88 → ahazred8ta]

There's a big gap between speculating on a blackboard and hard physical proof

For instance, that there would be 33 amino acids in that sample.

For all we know, those amino acids could've all been left handed like the ones in our bodies.

This hard confirmation of equal fractions of left and right handed amino acids rules out several hypothesis of why our amino acids are all left handed