The future of space exploration
Clip: Season 4 Episode 18 | 5m 58s Video has closed captioning.
A city-size lava tube has been discovered on the moon. This tube could provide shelter for astronauts that could potentially allow them to live on the moon. Professor in the department of earth, atmospheric and planetary sciences at Purdue University, Jay Melosh, joins Hari Sreenivasan via google hangout to discuss the future of space exploration.
Problems Playing Video? | Closed Captioning