NASA's discovery of 14 'dark comets' challenges space science. Blending comet and asteroid traits, these enigmatic objects ...

Two massive asteroid impacts 35.65 million years ago left significant craters but caused no long-term climate changes, ...

Scientists have discovered seven more "dark comets," and analysis of this haul suggests that the puzzling planetoids are ...

An unusual approach to spotting tiny asteroids uses James Webb Space Telescope data in a boost for planetary defense research ...

The spunky Lucy mission will make a second gravity assist of our world tonight as it heads off on its hunt for the solar ...

The Main Asteroid Belt's smallest ever asteroids have been detected, as discovered in a new study. The belt is located ...

Chondritic meteorites (chondrites) are some of the oldest rocks in our solar system, forming 4.5 billion years ago. Therefore ...

Most meteor showers originate from the debris of comets, but a few — including the Geminids — result from the debris of ...

The rocky bodies, which look like asteroids but act like comets, could comprise up to 60% of near-Earth objects.

NASA has announced the discovery of seven astronomical objects that come in two flavors; they look like asteroids but ...

NASA's Lucy spacecraft will perform a close flyby of Earth on December 12, utilizing a gravity assist to adjust its ...

The space rocks, both estimated to be no larger than 5 miles (8 kilometers) wide, impacted Earth within 25,000 years of each ...