Wednesday November 12th at 0903am GMT the Rosetta probe orbiting Comet 67P/Churyumov-Gerasimenko will launch the lander probe Philae for a landing on the comet 7 hours later. This can be viewed live on the ESA website. logon to http://new.livestream.com/esa/cometlanding for live coverage from ESA mission control. All images courtesy of ESA.
Rosetta and Philae
Comet lander Philae.
Comet 67P Churyumov-Gerasimenko.
Rosetta selfie.