On October 23, 2007 I spoke to a group of students about the astronomy represented in the movie Deep Impact.
On October 23, 2007 I spoke to a group of students about the astronomy represented in the movie Deep Impact.
For the information presented,
see the FAQ at the NASA Asteroid and Comet Impact
Hazards site.
Also, search for the review of the science in this movie
and others at Bad Astronomy.