Joe Velaidum and his partner, Laura Kelly, set out to walk their dog when their doorbell camera captured a meteorite striking their front walkway — where Velaidum had been standing moments before.

NASA's Curiosity rover has made a groundbreaking discovery on Mars by uncovering pure sulfur crystals within a broken rock.

Meteorites offer vital clues to the mysteries of the universe. But many are being lost to private collectors, potentially ...

Data collected by NASA's InSight lander suggest that ancient internal processes are responsible for the "Martian dichotomy" ...