Smithsonian and NASA scientists set out to collect an asteroid sample that may hold clues to the origins of life in our solar system.

Donaldjohanson formed about 150 million years ago when a much larger asteroid broke apart. Since then, its orbit and spin ...

Donaldjohanson, a main belt asteroid, could be a relic of a cosmic collision that took place 150 million years ago.

Asteroid Bennu, a 4.5-billion-year-old space rock, may hold clues to Earth's origins. With traces of water, amino acids, and ...