The OSIRIS-REx mission returned samples from asteroid Bennu, revealing unexpectedly complex organic molecules.
These findings suggest Bennu originated from a watery world that collided and fragmented, scattering its contents.
The presence of amino acids and nucleobases strongly indicates asteroids like Bennu potentially seeded Earth with life's building blocks.
This discovery intensifies scientific interest in exploring other celestial bodies for evidence of past or present life.