#panspermia "upended"
Spoiler ⚠️: #Bennu's salts are the same as here, but its amino acids are levogyre and dextrogyre and in terrestrial organisms they are levogyre only. If an asteroid did seed the Earth, it wasn't Bennu.
Both (amazing) papers are open access, tks NASA.
Spoiler ⚠️: #Bennu's salts are the same as here, but its amino acids are levogyre and dextrogyre and in terrestrial organisms they are levogyre only. If an asteroid did seed the Earth, it wasn't Bennu.
Both (amazing) papers are open access, tks NASA.
Reposted from
Nature
Not only does Bennu contain all 5 of the nucleobases that form DNA and RNA on Earth and 14 of the 20 amino acids found in known proteins, the asteroid’s amino acids hold a surprise
https://go.nature.com/4hDtGhL
https://go.nature.com/4hDtGhL
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