For the first time in the history of space exploration, scientists spotted and tracked an asteroid on a collision course with Earth. About the size of a truck, the asteroid slammed into the Nubian Desert in Sudan, in nearly the exact spot and only a few seconds from the time scientists had predicted. Now, together with NASA scientists, National Geographic joins researchers as they examine the remnants of the asteroid to unlock the clues to help us prevent or survive a future incident.

Not available for shipment outside of the U.S.

• 1 disc; approximately 50 minutes
• Widescreen
• © 2009

National Geographic DVD Exclusives

For the first time ever, National Geographic presents its programming in DVD-R format. Available exclusively through this site, you can now own more of our award-winning specials and documentaries in a high-quality DVD format.

How our DVDs and DVD-Rs Differ

Customers who purchase programs in the NG DVD Exclusives Library will receive a non-interactive, play only disc. There is no chaptering information on these DVDs, but there are chapter marks approximately every five minutes, which make it easy to fast forward through a program. The DVD-R format provides the digital video and audio quality you expect from all of our DVDs.

NOTE: The NG DVD Exclusives titles are not closed-captioned. We apologize for any inconvenience this limitation may cause.