FOX BIZ NEWS: New Mars rover looking for signs of life, Neil deGrasse Tyson explains

New Mars rover looking for signs of life, Neil deGrasse Tyson explains



Astrophysicist Neil deGrasse Tyson explains the airborne vehicle that will be flying around Mars and talks about what signs of past or present life the new Mars rover might find. He later addresses the SpaceX crew preparing to return home Sunday.

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