
The arrow shows the predicted path of the asteroid on Jan. 30, 2008, and the orange swath indicates the area it is expected to pass through. Mars may or may not be in its path. Image credit: NASA/JPL
NASA astronomers are monitoring an asteroid--named 2007 WD5--that is headed in the direction of Mars. The 164-foot wide asteroid is traveling at about 28,000 miles per hour. New data observation data shows that the space rock has a 1-in-25 chance of colliding with the red planet, scientists say. We'll find out why astronomers are hoping for impact. Teachers, find more information about using Science Friday as a classroom resource in the Kids' Connection.
Donald Yeomans
Manager, Near Earth Object Program
NASA's Jet Propulsion Laboratory
Pasadena, California
Segment produced by:Flora Lichtman