Loading...

Dr. Neil deGrasse Tyson: Launch Keynote: 28th National Space Symposium

189,506 views

Loading...

Loading...

Loading...

Rating is available when the video has been rented.
This feature is not available right now. Please try again later.
Published on Apr 18, 2012

Dr. Neil deGrasse Tyson
Director of the Hayden Planetarium,
Best-Selling Author and Host of COSMOS

Check out more videos at http://www.nationalspacesymposium.org...


to add this to Watch Later

Add to

Loading playlists...