We know there's matter, and we know there's anti-matter. If there's dark matter, is there an anti-dark matter? How come gravity can escape from a black hole? Do black holes capture dark matter? Can a moon have a moon? Can a planet have two stars? If you've had any of these questions, you'll want to listen to this week's show.

Read the full blog entry

So where are the show notes then?

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Van Rijn's original Invisible Elf was running for the North Carolina Senate, but dropped out of the contest after the paparazzi snapped him with a cute pixie just outside Disney World in Florida. Now he has settled down with her as they await their first child, writing his biography of life in Van Rijn's backyard, - Now you prove me wrong

Sorry Sticks. I didn't get access to the show until you did. I'm working on them - they'll be up by the end of the day.

Edit: Show notes and transcript are now up.
-Rebecca
Astronomy Cast student worker

Fraser, ask Pamela if there is a moon on one of Saturn's moon. I think there is, but i'm not sure at the moment.