Philae
Spacecraft
Philae was a robotic European Space Agency lander that accompanied the Rosetta spacecraft until it separated to land on comet 67P/Churyumov–Gerasimenko, ten years and eight months after departing Earth. Wikipedia
Launch date: March 2, 2004
Cost: 220 million EUR (2014)
Manufacturers: German Aerospace Center, CNES, Max Planck Institute for Solar System Research, and more