It all starts/ends here

Posting the same thing twice is a repeat. Posting it three times is a tradition.

At various points this quarter we'll be talking about the origin of life, the early history of the earth and the importance of asteroid impacts.

For everyone who has ever wondered what it would be like when a 500km diameter asteroid crashes into the earth. If you go to YouTube to watch it you can click a little link to watch it in high def. (highly recommended). You might also want to wait until you can crank up the speakers. The perfect soundtrack to the end of the world. Or the beginning...