A photo it took during its descent, one thing I noticed is the loose gravel and debris on the surface. What is keeping it from floating out into space? Does the comet have its own gravity or is it because of the speed of the comet that keeps it pinned to the surface.:hmmm:

http://img.photobucket.com/albums/v1...psyvydadhn.jpg

All matter has gravity and this object would have attained stability out in deep space. Things will change when it meets the solar wind and stabilize when it is far enough away again.

:up:

The spacecraft’s 12-year journey — it took a decade to get there — concluded with quite a few firsts, and quite a few fans.