Welcome to the Cosmic Queries Lightning Round. In this episode, astrophysicist Neil deGrasse Tyson answers a grab bag of fan questions as quickly as comic co-host Chuck Nice can lay them down. "Can you hear yourself scream in space?" "What implications will the discovery of temperatures below absolute zero have on science?" How do we know we're seeing 13 billion years into the past when we look at distant galaxies?" Even though this "Behind the Scenes" video is over 7 minutes long, it rockets along as Neil and Chuck tackle your questions at the speed of science. And if you love StarTalk Radio, don't miss out on any StarTalk news.