When scientists finally cracked open the capsule from asteroid Bennu, they expected carbon, water-bearing minerals, and maybe ...

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 ...

When NASA’s OSIRIS-REx spacecraft touched down on the asteroid Bennu, scientists expected a gentle landing. Instead, the probe sank deep into the surface — as if the ground had turned to liquid. For a ...