Here's the challenge: Land a spacecraft that was designed to be an orbiter on the surface of a speeding comet that is millions of miles away and carry out pioneering science on the way down.
원문출처 : http://www.cnn.com/2016/09/29/health/rosetta-orbiter-comet-landing/index.html
원문출처 : http://www.cnn.com/2016/09/29/health/rosetta-orbiter-comet-landing/index.html