Rosetta was a space probe built by the European Space Agency that launched on 2 March 2004. Along with Philae, its lander module, Rosetta performed a detailed study of comet 67P/Churyumov–Gerasimenko.
Illustration of Rosetta and Philae at the comet
Trajectory of the Rosetta space probe
Earth from Rosetta during final flyby
Deep Impact was a NASA space probe launched from Cape Canaveral Air Force Station on January 12, 2005. It was designed to study the interior composition of the comet Tempel 1, by releasing an impactor
Artist's impression of the Deep Impact space probe after deployment of the impactor
Deep Impact in a clean room
Cameras of the Flyby spacecraft, HRI at right, MRI at left