Landing on a Comet - Video
In less than a month, on November 12, 2014, the 100-kilogram Philae lander will separate from ESA's Rosetta spacecraft and land on the dark, dusty, icy surface of comet 67P/Churyumov-Gerasimenko. It has nothing but three legs and rocket boosters to prevent it from hitting the surface or being ejected into space.