Tryptophan, the essential amino acid behind the Thanksgiving myth that eating turkey can make you sleepy, has been found to ...

Tryptophan, the amino acid often linked to post-turkey-dinner drowsiness, has been discovered on the asteroid Bennu, ...

Jose Aponte, an astrochemist in the Astrobiology Analytical Laboratory at NASA's Goddard Space Flight Center and co-author of ...

Tryptophan, an essential amino acid, has been discovered on asteroid Bennu, suggesting that asteroids may have delivered ...

Lettuce grown in space loses calcium, raising concerns about critical nutritional risks for future missions to Mars.

WASHINGTON — President Donald Trump announced Tuesday he has decided to nominate Jared Isaacman to serve as his NASA administrator, months after withdrawing the tech billionaire's nomination because ...