Duck! (or: watch out, there are asteroids about)

 

The following url will whisk you away to a forum page with an embedded link of a rather nifty asteroid strike simulation. (The reason I'm linking to the link rather than embedding the video myself is that the forum page has a translation of the original Japanese narration which once accompanied the video but has since been removed).

 

http://xmb.stuffucanuse.com/xmb/viewthread.php?tid=5517

A three minute excerpt of Discovery Channel footage on current ideas about how we might avoid  a future asteroid strike. (Alas, you have to sit through an annoying thirty-second advert at the beginning.)