Neil deGrasse Tyson: It's time to unmaskito your life with Thermosell Zone Mosquito repellent. He says you don't call, write or text him and so how do we know he is there? DeGrasse Tyson answers Cosmic Queries on this edition of Star Talk.
The pull of gravity (the force, not the movie) is irresistible as Neil deGrasse Tyson and Leighann Lord grapple with weighty fan questions about matter and the curvature of spacetime.
Read more and listen to the full episode at http://www.startalkradio.net/show/cosmic-queries-gravity/
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