After more than a decade of roaming tirelessly across the solar system, the comet-watching Rosetta spacecraft has gone to its eternal reward. In a deliberate act of self-sacrifice, Rosetta plowed ...

Comet Craft Approaches its Target. After traveling through space for three years, the Rosetta spacecraft is about ready to wake and prepare to land on a comet. By Elizabeth Gibney & Nature magazine.

PASADENA, Calif. (AP) - Nearly six years after an 800-pound copper bullet excavated a crater on a comet, a NASA spacecraft revisiting the site has seen evidence of the destruction in images ...

Later this year, mission controllers will attempt to observe the comet up close and land the craft’s probe, Philae — the first time a comet landing has been attempted.

A "Devil Comet," twice the size of size of Mt. Everest and has an active ice volcano, will barrel across Earth's view in spring of 2024, scientists say.

The comet 12P/Pons-Brooks takes 71 years to fly around the sun and will next reach perihelion — the point in its elliptical orbit when it's closest to the sun — on April 21. Sponsor Message ...

Comet Tsuchinshan-ATLAS will sweep around the sun on Sept. 27 to make a brief foray into the morning sky. Will it be a bright naked-eye object with a significant tail?