Anyone who grew up learning that our solar system has nine planets probably remembers the moment Pluto got demoted. That ...

Strange hexagonal diamonds may have been jettisoned into space when a dwarf planet collided with a large asteroid around 4.5 billion years ago. A new model exploring the dwarf planet Ceres suggests ...

The finding comes from a fresh analysis of old data from NASA's Dawn spacecraft, which finished its mission in 2018. 'Oumuamua, the first known visitor from interstellar space, was likely a ...