The so-called 'planetesimal belts' are filled with tiny millimeter-sized particles created by collisions between comets.

An unusual looking 33-foot-long object discovered orbiting Earth last year may have come from a surprising place.

Comet ATLAS (C/2024 G3) came within 8.3 million miles of the sun on January 13 as it reached its perihelion, and is now disintegrating.

G3 may be hard to see due to weather patterns and the California wildfires, said Tim Brothers of the Massachusetts Institute ...

NASA shares images of comet C/2024 G3 (ATLAS) near the sun and stunning photos from Jupiter and Mars missions.

Do the periods of comets decrease because they lose mass every time they get near the Sun? Robert BaileyConover, Wisconsin ...

It’s a bird! It’s a plane! No, it’s an asteroid-comet hybrid called a ‘centaur’ that might not even be that. Asteroids are metallic rocks that form close to the sun, while comets are dirty snowballs ...

Scientists using NASA’s James Webb Space Telescope have studied Chiron, a centaur orbiting between Jupiter and Neptune, unveiling its unique dual nature as both asteroid and comet. The research ...

In the distant space out beyond the orbit of Jupiter lurks a strange ... "It has periods where it behaves like a comet, it has rings of material around it, and potentially a debris field of small dust ...

Jupiter as seen by NASA's Juno spacecraft on Sept. 20, 2024 during its 65th perijove, and processed ... [+] by Jackie Branc. NASA’s Juno spacecraft orbiting Jupiter has returned another ...

NASA's most powerful observatory - the James Webb Space Telescope has provided exciting new details about 2060 Chiron, a ...

Science enthusiasts are hoping to get a glimpse of a comet that’s supposed to be the brightest of 2025, but they may be out of luck depending on where they are in the world. The comet ...