NASA has confirmed that dust from the ancient asteroid Bennu contains tryptophan, an amino acid tied both to human mood and ...

The question of how life started on Earth is rife with speculation, some ending with a delivery truck from space. Panspermia ...

Researchers say the latest discovery is particularly significant because tryptophan has never before been detected in ...

A big question in the origin of life on Earth is why it is based solely on "left-handed" amino acids. Studies on asteroid Bennu's chemical building blocks deepens the mystery. When NASA launched a ...

Asteroid Bennu, which passes near the Earth roughly every six years, contains tryptophan, one of the most complex amino acids essential for life, scientists have confirmed. This discovery comes from ...

Tryptophan, the essential amino acid behind the Thanksgiving myth that eating turkey can make you sleepy, has been found to exist on Bennu, a small asteroid that swings by our planet about every six ...