The Mystery and the Music of Saturn's Rotation this week on planetary Radio. Radio. Welcome to Public Radio's travel show that takes you to the Final Frontier.

I'm at Kaplan of the Planetary Society.

The Cassini spacecraft continues to solve old riddles about the ring planet even as it

uncovers new and even greater mysteries.

For example, we now know that the accepted rate at which Saturn turns, which has been in textbooks

almost since the Voyager missions, is wrong.

And that's not the half of it it as you'll hear from Don Granette

Kossini's radio and plasma wave science team lead.

You'll also hear the eerie sounds of Saturn as it turns.

Later in today's show the the Erie Sounds will be coming from Bruce Betts,

as he introduces another random space fact, along with a new space

trivia contest.

Bill Nye is away this week, but I know you'll be glad to hear the return of the Planetary

Society's science and technology coordinator Emily Lockwala.

Emily, it seems like it's been ages welcome back

Thank you Matt. It's nice to be back. I'm glad because we missed you and we're looking forward to hearing some of these highlights

Recent highlights from the blog. I'm going to mention very quickly right up front something and Phobos passing through the frame with Jupiter in the background.

It's really quite beautiful and people should take a look at that from the, it's a June 17 entry

that you got into the blog.

Let's move on to talking about Messenger, which is starting to release some really

interesting data about Mercury telling us that it's a unique place.

That's right, you know, Messenger has now been in orbit for one year, one Mercury year,

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