Closing in the

in on the Pioneer anomaly, this week on planetary radio. Hi everyone, welcome to Public Radio's travel show that takes you to the final frontier.

I'm Ad Kaplan.

Why aren't Pioneers 10 and 11 where they are? Final Frontier, I'm Mad Kaplan.

Why aren't Pioneers 10 and 11 where they are supposed to be?

We'll check in with Slavituracheff, head of the Pioneer Enomaly Project, which is almost

ready to release 30 years of mission data to scientists around the world.

Emily Lachawala will take a somewhat reluctant look at the end of the Cassini mission,

and Bruce Vats will join us for a what's up look at the night sky, punctuated by science

fiction silliness and a new space trivia contest.

Just a couple of headlines from around the universe.

By the time you hear this, Cassini will have completed a fly-by of one of

Saturn's strangest moons.

In fact, with one side black is coal and the other quite bright.

Iapitis is one of the strangest bodies in the solar system.

Bruce will have more to say about it during what's up,

and next week we'll talk with a Cassini scientist about the close encounter.

Check Emily's blog for the latest news. She's at planetary.org.

Our image of the week is also at planetary.org.

It's a shot that looks out almost as far as the Hubble and Spitzer space

telescopes can see just a billion or so years after the big bang. The big excitement is that you can make out itty-bitty galaxies.

Current theory says it's these little guys with their young stars that later got together

...