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. Credit: Christoph ...

NASA has confirmed that dust from the ancient asteroid Bennu contains tryptophan, an amino acid tied both to human mood and to the chemistry that makes life possible. The finding folds a familiar ...

Add Yahoo as a preferred source to see more of our stories on Google. A mosaic of Bennu created from observations made by NASA's OSIRIS-REx spacecraft, which was in ...

The first grains of rock and dust from asteroid Bennu are turning out to be far richer than many scientists dared hope, packed with organic molecules that speak directly to how life may have first ...

Tim McCoy, right, and Cari Corrigan, meteorite researchers at the Smithsonian's National Museum of Natural History, look at images of asteroid Bennu samples taken by a scanning electron microscope.

NASA’s OSIRIS-REx (Origins, Spectral Interpretation, Resource Identification, and Security-Regolith Explorer) mission has detected amino acids in the largest asteroid sample ever collected in space, ...

Add Yahoo as a preferred source to see more of our stories on Google. 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 ...