Greetings once again, planetary radio listeners in the online segment of our

audience. Thank you for listening. Thank you also for all of you who take the

trouble when you enter the contest or just send us a separate

piece of email to tell us how much you enjoy the show. So here I am with a special

request, not for money, not this time, I might do that again, but what

I'm going to ask is something I have also asked for in the past and that is that you make a comment add your review or at least a rating to a

podcast service an aggregator as they're called like iTunes or Stitcher or

wherever you hear planetary radio.

Now I know a lot of you hear the show directly from our website at planetary.org.

So this means a little bit more effort for you. You'd have to go into iTunes and

actually click one of those little stars. Of course we hope it'll be one of the high-end

stars. We still have as far far as I know, the highest

percentage of five-star ratings of any science program that I could find in the

iTunes store. Anyway, if you will help us out, that does an enormous amount to help get the word out.

And I would hope that you'd want to share this, not just keep it to yourself, but share

this little exploration of the final frontier that we bring you along on each

week and if you do find time to do that we will be very very grateful. Thanks again

for listening and I'll see you around the solar system.

Leaving behind a life on Mars this week on planetary radio.

Welcome to the Travel Show that takes you to the Final Frontier.

I'm at Kaplan of the Planetary Society and I've got a terrific conversation for you today.

It's with John Grotinger, the former Project

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