Asteroid Bennu samples have 14/20 amino acids found in life on Earth
nature.com
nature.com
This has big implications for understanding the rise of life in our solar system, and perhaps the potential rise of life in the cosmos.
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.
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