Jefferson Lab Science Series

| Current Lecture Schedule | Video Archive |

Becoming Enlightened About Light

Previous Video

(Becoming Enlightened About Light)

Science Series Video Archive

Next Video

(Lowering the Boom!)

Lowering the Boom!

Collisions of Comets and Asteroids with Earth

Dr. Christopher Chyba - National Security Council

November 9, 1994

How much of a threat do these collisions pose today?

Is the space above this area blank? If so, there may be a problem loading the embedded version of the video from YouTube. Either their server is having issues or your school is actively blocking access to YouTube.