Which comet was visited by the Rosetta spacecraft in 2014?

The Rosetta spacecraft visited comet 67P/Churyumov–Gerasimenko in 2014.

The European Space Agency launched Rosetta on 2 March 2004, beginning a decade-long journey that included gravity-assist flybys. It rendezvoused with 67P on 6 August 2014 and entered orbit around the comet on 10 September, becoming the first spacecraft to orbit a comet’s nucleus for an extended mission.

Rosetta’s observations revealed that 67P has two distinct lobes joined by a narrow neck, giving it a distinctive “rubber-duck” shape. The comet is a Jupiter-family comet, with an orbital period of about 6.4 years, and it was discovered in 1969 by Soviet astronomers Klim Churyumov and Svetlana Gerasimenko.

The mission also carried the Philae lander, which touched down on 12 November 2014. Although Philae bounced and landed in an awkward location, it transmitted valuable data from the surface. Rosetta ultimately ended its mission by making a controlled landing on the comet in September 2016.