Pons-Brooks and Jupiter were seen by NASA's Solar TErrestrial Relations Observatory-A (STEREO-A). Credit: Space.com | NASA ...

For years, we thought a giant comet object smacked into Earth 66 million years ago, signing the collective death certificate ...

Why do comets and their meteoroid streams weave in and out of Earth's orbit and their orbits disperse over time? In a paper ...

Once you remember that the sun also orbits the solar system's common center of mass, it all makes sense. Our sun is wobbling, ...

A group of comets with unexplained movements presents a quandary D avide Farnocchia hunts down and tracks asteroids, and ...

A dazzling snapshot from ESO’s Paranal Observatory captures a rare sky parade — the Moon, a comet, and nearly every visible planet strung across the heavens. This celestial lineup is an optical ...

Hubble is still going strong 35 years after it was launched into space. Celebrate its anniversary with some out-of-this-world images.

Lucky is the word I’d use for any telescopic observers who got to see one of the most stunning spectacles in nature when Comet Shoemaker-Levy 9 impacted Jupiter in July 1994. The collision left ...

"Long-period comets spend most of their lives so far away from the solar system that they feel the tug from the barycenter," said Pilorz. "But every few hundred years they swoop inside Jupiter's ...

"Long-period comets spend most of their lives so far away from the solar system that they feel the tug from the barycenter," said Pilorz. "But every few hundred years they swoop inside Jupiter's ...

Meteor showers can be spectacular, but predicting when and where they’ll appear in the night sky has often been a challenge.