Meet the biggest thing to hit the Milky Way since the Sun! Jupiter might seem all big and gassy, but deep down he... well, yeah... he's pretty gassy...
If long distance relationships are your thing then Pluto may be the destination for you! He may be a little on the small side but appearances can be deceiving!
Take a look at the kinds of protective shelters we'd need in order to live on Mars' surface. Here's a hint: the shelters are more stone age than space age.
Some times patients in a disease investigation are the best defense in stopping an epidemic. Caroline Morrison interviews a potential carrier of this alarming disease and figures out a piece of the puzzle.
The crew talks about how Firefly is remembered. Joss Whedon states he still wants to find a way to tell the rest of the story he didn't have time to accomplish.
Karl goes inside an Egyptian pyramid to join a session of meditation that is based on Atlantean magic used to honor aliens. But nobody told him he'd be inside a tomb!