Big Picture Science – Seth’s Tool Shed: David Summers

by Gary Niederhoff on September 5, 2011

Part 3 of Seth’s Tool Shed, featuring David Summers, Astrobiologist at the SETI Institute, on the likelihood that all life on Earth has a common ancestor.
(TRT 7:47)

Leave a Comment

This blog is kept spam free by WP-SpamFree.

Previous post:

Next post: