What factor 7, Mr. Sulu, make it so this week on planetary Radio. Radio. Welcome to the Travel Show that takes you to the Final Frontier.

I'm Matt Kaplan of the Planetary Society.

Inspired by Star Trek, theoretical physicist Miguel Al-Qubierre

came up with the basis for warp drive.

Twenty years later, he'll tell us why he doubts that we'll ever achieve it and about the other

fascinating work he does with numerical relativity. Bill Nye previews a congressional

hearing about putting asteroids within our grasp and we'll learn there's more than one way to describe the orbital period of Pluto when we visit with Bruce Betts for what's up.

Emily Lachowala is ready to take us out of orbit.

Emily, it seems like week in, week out, it's Rosetta that we talk about, but it just

keeps getting better.

It took a long time for Rosetta to get there and it's going to take a long time for

us to appreciate all of the amazing science that it's going to take a long time for us to appreciate all of the amazing science

that it's going to be doing at the common. But this image that you've now got

posted as part of this September 4 entry, you can clearly see a comet doing what a comet does when it gets close to the sun.

That's right and of course it's not surprising to see jets from a comet.

That's what comets do after all, but it is very exciting to see it in the photo.

You can see two very

distinct jets that seemed to cross each other coming out of the neck but also when I

was looking closely at these images I'm pretty sure I see some other

areas of enhanced brightness above the background. I think there are

several locations where there's stuff coming off of this comment. I guess it's just

going to get better and better, right? What else is happening with this mission?

...