This photo of Saturn's 'blue moon,' Rhea, was recently snapped by the Cassini spacecraft. The false color image shows deep fractures cutting through the craters on the moon's surface. More at Space.com.
Freelance journalist Zoe Cormier, a science writer and photographer with a background in biology, joined George Knapp in the first half to discuss her new book Sex, Drugs and Rock 'n’ Roll: The Science of Hedonism.
In the later half, David Browne, longtime music journalist and contributing editor at Rolling Stone, delved into the Grateful Dead, the band that became a musical and cultural phenomenon that has spanned generations.