Smashing Video
NASA animation of the impending Deep Impact Comet.
(an) artist’s conception” of the Tempel 1 Deep Impact mission. Nobody knows what will happen when 820 pounds of metal slams into the comet with 5 kilotons of force, but whatever happens, Maas’s digital precreation is probably way more entertaining than NASA’s imagery is likely to be.
(via Slashdot)
Update:
Some related animations submitted in the comments - for hardcore fans there’s also a 10 min (28MB) nuclear interception sequence.

