The astroquarks are joined by Dr. Erika Nesvold, astrophysicist and author of "Off Earth: Ethical Questions and Quandaries for Living in Outer Space" to explore some of the surprising problems people need to think about when going to space. We're busy littering already, but that's just the tip of the asteroid. Join us for a discussion of some of the trickier issues of space exploration, space news, and gravitational wave trivia. The only place you can find that lineup is on Walkabout the Galaxy.