Channel 4 (UK) Documentaries

Meteor Strike: Fireball From Space (2013x12)

:

A couple of weeks ago, a meteorite bigger than a double decker bus crashed into Earth at 40,000 miles an hour. This film shows previously unseen footage of what happened as the meteor hit Russia. Astrophysicists explain what it was and whether it will happen again. We also hear of NASA’s plans to deal with the worst case scenarios and what can be done to defend our planet from space debris.