Rice alumnus, astronaut describes what it's like to walk in space

John 'Danny' Olivas '96 recently appeared on CNN to discuss what it's like to perform a spacewalk and why astronauts go on them.

Astronaut on a spacewalk

NASA astronaut John "Danny" Olivas recently appeared on CNN to describe what it's like to perform a spacewalk and why astronauts go on them.

Olivas earned his doctorate in materials science and mechanical engineering from Rice University in 1996.

Visit CNN.com to watch the segment.