<p>Dr. Kirkpatrick talks about stars so cold you could touch them without getting burned.</p>

6: Hubble sees a collision with Rob Landis

Hear stories about the alien moons orbiting our Sun, of cold stars, and the future of space exploration.  Every week, scientist Dr. Carrie Nugent chats about an amazing part of our universe with an expert guest. Spacepod is the podcast that gives you an inside look into space exploration. Learn more: http://listentospacepod.com