Message to Attendees of the 2013 IAA Planetary Defense Conference

Dr. Jim Green, director of NASA Planetary Science, speaks to attendees of the 2013 IAA Planetary Defense Conference in April 2013.
July 23, 2013
Language
  • english

Dr. Jim Green, director of NASA Planetary Science, speaks to attendees of the 2013 IAA Planetary Defense Conference in April 2013.