<p>Dr. George Privon talks about what galaxies are and what happens when two galaxies merge.</p>

23: Engineering the Galileo Probe, Pt 1.

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