Astrophysicist, former astronaut and NASA associate administrator John Grunsfeld on human exploration of space and the science we will do there.
Nov 21
Book Club Edition: The Martians: The True Story of an Alien Craze that Captured Turn-of-the-Century America by David Baron
<p>There was a time when almost everyone, from Alexander Graham Bell to the Wall Street Journal, believed there was a supremely intelligent civilization on Mars, one that was probably trying to talk to Earthlings. Most of this belief could be traced to an amateur astronomer and c ... Show More
1h 3m
Nov 2018
What is Astronomy, Even? with NASA's Paul Geithner
Paul Geithner is the Deputy Project Manager — Technical for the James Webb Space Telescope at NASA's Goddard Space Flight Center in Greenbelt, Maryland. Paul joins Jonathan to give him a crash course in what the electro-magnetic spectrum is, how space debris can effect space prog ... Show More
53m 21s