NASA Associate Administrator John Grunsfeld this week on planetary radio.

Welcome to the Travel Show that takes you to the Final Frontier. I'm

Matt Kaplan of the Planetary Society. I've saved former astronaut Grunsfeld

for our last stop at last month's Space Symposium.

You'll also meet two women who headed a young professional contingent at that annual

gathering.

Bill Nye has the week off as he heads to D.C. for the Humans to Mars Summit, but Bruce will drop by for a what's up with a great new contest

prize and we've got senior editor Emily Lockuala with a report on the European Space Agency's

visitor to Comet 67P.

Emily, watching a comet do what a comet does.

Oh my goodness.

Yeah, Rosetta's images of the comet, they never get old and you look at this thing from different

angles and different light and it's just endlessly fascinating.

I tell us about this camera that delivered these amazing images.

It's the science camera on the Rosetta Mission, the Osiris camera.

Many of the images that you see of the comet are not from this science camera.

Most of the time, when you see public articles about the

comet you're looking at nav cam images, images from a camera that was designed just to

help the spacecraft navigate its way around in space. The pictures I'm showing

you on this blog entry are from a science camera that is capable of seeing much more rich variations in brightness and darkness and it also has a huge detector.

It's a 4 megapixel camera which is pretty unusual for deep space cameras so the detail is just tremendous.

What kind of detail?

...