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.
FULL STORY: http://science.nasa.gov/science-news/science-at-nasa/2013/26feb_russianmeteor/
VIDEO: http://www.youtube.com/watch?v=-qZ6oiaSm00
