Podcast listeners. Hello again. Just want to take the opportunity to thank those of you who

started following us on Spreaker. We reached our goal there very quickly. It was a modest goal, but apparently that's the kind of thing they're looking for.

And the rest of you simply for listening.

I read every single one of the messages that you send as email and otherwise.

And those of you who add a special message, they are very special to me and to everybody else

on the show.

I'm sorry that I have not had time to respond to everybody but you frequently make me

smile and often give me a good laugh as well.

It is very touching to hear from all of you that way.

Also want to mention that the deadline for the contest

you're about to hear, the new one this week

is Tuesday, September 1 at 8 a.m. Pacific time.

And yes, I forgot to say that during the show. That's

about it. Thank you. Clear skies. Keep looking up.

Where, oh where to look for past 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.

The landing of the next big Mars rover is still five years away,

but the process of deciding where to put it on the red planet is well underway.

We'll talk to three of the people helping to make that momentous decision.

First though, the Planetary Society senior editor, Emily Lacawala, considers a neat trick regularly pulled off by a current Mars

rover.

...