A meteorite, Northwest Africa 12264, is questioning the established timeline of our solar system's formation, suggesting ...

A small, inconspicuous meteorite may be about to change our understanding of how and when our solar system formed. Tiny shavings from the meteorite Northwest Africa 12264 are challenging the long-held ...

Rocky bodies called protoplanets were thought to have formed slightly earlier in the inner solar system than those beyond the ...

The asteroid belt is a ring of debris that exists between Mars and Jupiter. What caused it to form — and will it ever become a planet?

A large asteroid could be reclassified as a dwarf planet – which could make it the smallest in the solar system – after new research revealed its shape, astronomers said on Monday.

The asteroid belt may have originally started out empty, later becoming a "cosmic refugee camp" taking on leftovers of planetary formation from across the solar system, a new study finds.

The binary star system SDSS 1557 has a rocky asteroid belt, which could hold clues to the formation of Earth-like planets.

A better understanding of the asteroid belt has revealed just how dynamic the solar system was in its early days, a new study reports. "In modern dynamical models, the giant planets are thought to ...

A better understanding of the asteroid belt has revealed just how dynamic the solar system was in its early days, a new study reports.

For years now, there have been claims from the astronomical fringes that our solar system’s Main Asteroid Belt contains the destroyed, or even “exploded,” remains of one or more full-scale ...

LONG BEACH, Calif. – Astronomers have discovered a giant asteroid belt circling the bright star Vega, a find that may ultimately reveal an entire solar system of planets, scientists say.