Or what you need to pack for a mission to Mars?
Wonder no more.
Neil deGrasse Tyson, astrophysicist and director of the Hayden Planetarium, is here to answer those questions.
Tyson hosts the wildly popular podcast show StarTalk Radio, where brilliant minds from academia join standup comics for hilarious-yet-accurate discussions of interstellar questions. It's science meets pop culture.
And on Nov 27-28, 2012, you can be too. Tyson will be hosting a special StarTalk Radio show at Business Insider's IGNITION: Future of Digital conference, taking place Nov. 27-28, 2012, in New York.