Three of the others (Haumea, Makemake, and Eris) are even farther away from the Sun; only Ceres is in the inner solar system, ...

New models suggest that Ceres, the asteroid belt's largest object, once had a radioactive core that could have sustained life in the dwarf planet's hidden subsurface ocean billions of years ago.

The ambitious mission to retrieve samples from asteroid Bennu and return them to Earth is paying off. Just as scientists had hoped, the asteroid is revealing details about the early days of our solar ...

Smithsonian researchers analyzed fragments of the near-Earth asteroid and discovered water-rich clays that hint at a distant ...