To Catch a Comet
Special | 55m 41s | Video has closed captioning.
On November 11, billions of kilometers from Earth, a spacecraft orbiter and lander did what no other had dared to attempt: land on the volatile surface of a comet as it zooms around the sun at 67,000 km/hr.
Aired: 11/19/14
Expired: 04/08/22
