Meteor Strike: The Complete Story of Russia's Cosmic Fireball

Thanks to the crazy prevalence of dash-cams in Russia, we got an amazing, multi-viewpoint look at last month's monster meteor strike just hours after it happened. But there's more to see than just the flashes in the sky. PBS's Nova dug in deep to figure out the details of the incident, and the disaster it could have been. The disaster it might be next time if we don't keep a close watch on the skies. More »