A massive meteor hit the Earth's atmosphere, creating a giant
shock wave that injured more than 1,000 people. On the same day,
an asteroid half the size of a football field came within 17,200
miles from Earth. NBC's Tom Costello reports. A meteor flared
through the skies over Russia's Chelyabinsk region early Friday,
triggering an atomic bomb-sized shock wave that injured more
than a thousand people, blew out windows and caused some
Russians to fear the end of the world. NASA said it was the
largest reported fireball since the Tunguska event in 1908 — an
asteroid explosion that flattened millions of trees over 820
square miles of remote Siberian forest. Friday's event was
witnessed by throngs of Russians in Chelyabinsk, a city of 1.1
million in western Siberia. Multiple amateur videos posted
online showed the meteor’s flaring arc stretching hundreds of
miles across the sky. Other videos from the scene captured the
sound of a loud boom, followed by a cacophony of car alarms. One
video showed the hurried evacua