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

Small icy moons may have hidden oceans that briefly boil under thick ice. Changing pressure inside these moons shapes their ...

Little is known about the long-destroyed moon-forming planet, Theia. But it may have been born in the inner solar system—just like Earth—a new study suggests ...

Two millenniums before blastoff, astronomy belonged as much to the realms of art, philosophy and religion as it did to what ...

Mars, long considered largely static, has revealed a dynamic interior in recent years. NASA’s InSight mission detected ...