Rosetta arrives at Comet 67P...

Rosetta arrives at Comet 67P ... and successfully enters orbit around it (the photo at right is one of the first high-resolution images returned from orbit).  That's after 10 years of travel, and several years of design/build before that.  Some members of the team have been working on Rosetta for nearly 15 years.  Watching the live streaming video, you get a sense for just how excited these scientists are to see this decade-and-a-half of work reach its objective.  Congratulations, ESA team!

I'm looking forward to seeing the science results roll in.  We're about to learn a lot more about comets, and I'm sure there will be lots of interesting surprises...