Comet 67P

Solar System

Comets Have (Ultraviolet) Aurora, Too

Observations from the European Space Agency’s Rosetta spacecraft show that Comet 67P/Churyumov-Gerasimenko has its own aurora.

Rosetta on Comet 67P's surface

Astronomy in Space with David Dickinson

Rosetta's Grand Finale

The historic mission to explore a comet ends in dramatic fashion on September 30th.

Rosetta's Comet 67P

Solar System

Rosetta’s Comet Began as Two

Comet 67P’s nucleus was born when two became one.

Comet 67P/C-G

Explore the Night with Bob King

Rosetta's Comet Beckons At Dawn

Northern hemisphere observers have this month and next to get their best look at Rosetta's comet, 67P/Churyumov-Gerasimenko.

sinkhole on Comet 67P

Solar System

Rosetta Spots Sinkholes on Comet

The spacecraft orbiting Comet 67P/Churyumov-Gerasimenko has found 18 holes in the nucleus's surface.

Astronomy and Stargazing Projects

Rosetta's Comet Campaign Wants YOU!

Participate in a world-wide campaign to observe and photograph Comet 67P/C-G as it approaches and recedes from the Sun with Rosetta in tow. Your observations matter.

Solar System

Rosetta Update: Philae Landed in a Hole

The exact location of Philae’s landing site remains unknown, though the site’s topography might allow the lander to operate longer than planned. Meanwhile, Rosetta is detecting organics and heavy elements even when Comet Churyumov-Gerasimenko is far from the Sun.

Solar System

Rosetta Catches Its Comet

On August 6th, the ESA's Rosetta spacecraft finally completed its decade-long voyage to Comet 67P/Churyumov-Gerasimenko.

Solar System

Rosetta's Comet has a Split Personality

The Rosetta spacecraft is closing in on Comet 67P/C-G, providing astronomers with an ever more detailed view of its structure. Judging by the latest photos, it actually has two components and is shaped like… a rubber ducky?

Rosetta's comet without coma

Solar System

Rosetta's Comet Sleeps Again

Comet 67P/Churyumov-Gerasimenko only woke briefly before starting another nap, expected on-again-off-again behavior that bodes well for the comet-chasing spacecraft's arrival in August 2014.

Comet with cluster M107

Solar System

Rosetta's Comet Awakens

The Rosetta spacecraft took these images of Comet Churyumov–Gerasimenko as it approaches the nucleus. It'll launch its lander, Philae, in November onto the nucleus's surface.

Solar System

Rosetta Spots Its Comet

The European Space Agency’s comet-chasing spacecraft has imaged its destination for the first time since waking up from 957 days of hibernation.

Space Missions

The End of Rosetta's Big Sleep

Europe's comet-chasing spacecraft woke up after a 957-day-long hibernation to begin the most comprehensive comet study to date. Part of its mission: attempt to place an instrumented lander on a comet’s nucleus for the first time.