NASA's Cassini probe has been exploring the Saturn system for almost a decade. In that time, it has fundamentally changed the way we look at the Ringed Planet and its many moons – not to mention the rest of our solar system. But which of its observations rank among Cassini's greatest contributions to science?
Here's your exclusive first look at a new star-map of Battlestar Galactica's Twelve Colonies, designed by writer Jane Espenson and science advisor Kevin Grazier. And Espenson and Grazier explained to us how twelve colonies can fit in one star system.
At the awesome panel called "The Science Behind Science Fiction," Phil "Bad Astronomer" Plait was joined by Kevin Grazier, a rocket scientist and science adviser for Battlestar Galactica and Eureka. Grazier said that sometimes the actors on the shows are as rabid about getting the science right as he is: James…