Rosetta Spacecraft

If you regard comets as big old dirty snowballs, boringly uniform and featureless, this photo will set you straight.

Nearly 100,000 high-resolution images of a comet, two asteroids, Earth and Mars are now all available to the public online.

More samples of comets are urgently needed to better understand the early history of the solar system, say researchers analyzing comet dust brought back to Earth by NASA’s Stardust mission in 2006.

A Twitter user managed to turn 25 minutes worth of images from the ESA's comet lander into a dramatic short film.

The finding shows that oxygen can be generated in space without the need for life, and could influence how researchers search for signs of life on exoplanets.

Material from the sun may have caused Comet 67P/Churyumov-Gerasimenko to flare up nearly 100 times brighter than average in some parts of the visual spectrum, new research reports.

Comet outbursts are likely caused by landslides rather than pressure-based eruptions from the icy bodies' interiors, a new study suggests.

Today (Sept. 30) marks the end of operations for the European Space Agency's (ESA) historic Rosetta mission, and the mood felt almost funereal as the postlanding celebration began.

Rosetta captured its last view of Comet 67P from an altitude of about 65 feet (20 meters).

The Rosetta probe drifted down to the surface of Comet 67P today (Sept. 30) and ended its 12-year mission.

The Rosetta spacecraft will crash land into Comet 67P after more than a decade in space, concluding one of the greatest unmanned space missions.