Source - NASA Science News for Feb. 26, 2013
Nearly two weeks after an asteroid exploded over Russia's Ural mountains, scientists are making progress understanding the origin and make-up of the unexpected space rock. Today's story from Science@NASA presents their latest results.
The complete article can be found here: http://science.nasa.gov/
A companion video is posted below and can also be viewed at: http://www.youtube.com/watch?
License: Standard YouTube License