By Neil deGrasse Tyson
Published November 27, 2015 5:55pm
Join Neil deGrasse Tyson and Chuck Nice as they tour the solar system with Mars Exploration Rover principal investigator Steve Squyres and planetary scientist Heidi Hammel. Extended with an update on Pluto from Neil deGrasse Tyson and 10 minutes of new Cosmic Queries with Bill Nye and Chuck Nice!
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