Once thought to be the debris of a destroyed planet, the asteroid belt is now understood as a region shaped by gravity, ...

Before the asteroid belt, there was a planet. Some called it Maldek. It had oceans, an atmosphere, and possibly life. Then ...

Stowaways in a small car-sized asteroid that crashed in northern Sudan in 2008 have revealed what happened to a mysterious dwarf planet that is dusting Earth with a rare type of meteorites. That dwarf ...

For years, astronomers treated Vesta as more than just an asteroid. With its rocky surface, distinct layers, and volcanic history, it seemed to be a miniature version of Earth—something between a rock ...