Join NOVA to hunt for clues to the origin and makeup of the meteor that struck Siberia in February.ï»¿ On the morning of February 15, 2013, a 7,000-ton asteroid crashed into the Earthâ€™s atmosphere, exploded and fell to earth across a wide swath near the Ural Mountains. The Siberian meteor was captured by digital dashboard cameras, a common fixture in Russian cars and trucks. Within days, armed with this crowd-sourced material, NOVA crews, along with impact scientists, hit the ground in Russia to hunt for debris from the explosion and clues to the meteorâ€™s origin and makeup. Is our solar system a deadly celestial shooting gallery â€” with Earth in the cross-hairs? What are the chances that another, even more massive, asteroid is heading straight for us? Are we just years, months or days away from a total global reboot of civilization, or worse?ï»¿ NOVA: Meteor Strikeï»¿ airs Wednesday, March 27, 2013 at 9 p.m. on WXXI-TV/HD (DT 21.1/cable 11 and 1011).