PBS
Charlie Rose: NASA's Mars Expedition
A conversation with Dr. Richard Berendzen of American University and astrophysicist Neil deGrasse Tyson of the Hayden Planetarium about NASA's trip to Mars and the significance of analyzing the planet's rock samples.
 |
About |
Sections |
Community |
Site |
Contact |
Copyright © 2013 Neil deGrasse Tyson. All rights reserved.
