Neil deGrasse Tyson and comic co-host Eddie Brill answer fan-submitted questions on space exploration including asteroid defense, the Moon landing, the Space Race, Mars, the International Space Station, the boundary of space, Zeno’s paradox, and more.

NOTE: StarTalk All-Access subscribers can watch or listen to this entire episode commercial-free here: https://www.startalkradio.net/all-access/cosmic-queries-space-exploration/

Photo Credit: NASA