“[A]biotic synthesis of aromatic amino acids might be possible in the water–rock interface of Enceladus’s subsurface ocean,” the scientists explain. That’s only as far as Saturn. Maybe a ...

Scientists have long believed they understood how life’s genetic code evolved, but new research upends that assumption. By ...

Samples from the asteroid Bennu contain the building blocks of life as we know it. Scientists are enthusiastic.

This diagram depicts the chemical structure of pyrimidine, a six-membered aromatic ring with two nitrogen atoms at ... (ALS), which is crucial for the synthesis of branched-chain amino acids in plants ...