An essential amino acid that is mistakenly believed to cause drowsiness after eating turkey has been found in an asteroid for the first time, giving scientists clues to the origin of life on Earth.

A small rock sample collected from asteroid Bennu contains traces of tryptophan, a complex amino acid rarely found in space ...

NASA’s first spacecraft to collect a sample from an asteroid will complete its 7-year mission later this year when OSIRIS-REx drops off some of asteroid Bennu in Utah. OSIRIS-REx – a fancy acronym for ...

CAPE CANAVERAL, Fla. (AP) — Asteroid samples fetched by NASA hold not only the pristine building blocks for life but also the salty remains of an ancient water world, scientists reported Wednesday.

These images mark an early milestone in the mission, confirming that OSIRIS-APEX is healthy and on course for its 2029 ...

A view of the outside of the OSIRIS-REx sample collector. Sample material from asteroid Bennu can be seen on the middle right of the container. Scientists have found evidence of both carbon and water ...

An artist's rendering depicts the OSIRIS-REx spacecraft contacting the asteroid Bennu with the Touch-and-Go Sample Arm Mechanism. In samples taken from a distant asteroid, scientists have discovered a ...

“Impact flashes on the moon are very common,” University of Colorado Boulder astrophysical and planetary sciences professor Paul Hayne said. “In fact, they happen more or less every night, and it’s a ...

The seven-year Osiris-Rex mission ended on Sunday with the return of regolith from the asteroid Bennu, which might hold clues about the origins of our solar system and life. By Katrina Miller A ...

Planet Earth is about to receive a special delivery — the biggest sample yet from an asteroid.Video above: NASA predicts large asteroid could impact EarthA NASA spacecraft will fly by Earth on Sunday ...

This artist's concept depicts the 140-mile-wide (226-kilometer-wide) asteroid Psyche, which lies in the main asteroid belt between Mars and Jupiter. In two weeks one of the highest profile space ...

Asteroid samples fetched by NASA hold not only the pristine building blocks for life but also the salty remains of an ancient water world, scientists reported Wednesday.Video above: Scientists discuss ...