Wanted a few good astronauts 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.

NASA has given you until January 27 to apply for work out there in the black.

Three-time shuttle astronaut Rex Walheim will tell us how to get our names in the pool and

we've got so much more from all the regular suspects including my most recent

conversation with the editor of the Planetary Society's blog Emily Lachto-Wala.

Emily, we have a nice generational theme as we go through three different topics on your commentary

today, beginning with this piece that you've posted about well it asked the question what do we

know about planetary rings yeah this is a post about a really big review article

written by Matt Tiskerino about about rings around every planet about rings that may exist that we don't know about

about rings about extrasolar planets just rings everywhere and what we know

about them in general and it's it's really quite a fascinating paper and I think

one that would be accessible to people who are willing to slog a little bit through technical terminology

And this is a December 15 entry in the blog now the theme enters in here because you were saying that Matt is a pretty much

newly minted PhD. That's right he's only been a PhD since 2004 which is right around the

time that Cassini went into orbit around Saturn.

So this is a guy who has basically become a professional and

start writing review papers, which really indicates that you've mastered your field.

In just the few years, the Cassini's been in orbit.

Let's drop a bit down now to someone a little bit younger, someone that you've been working

with for a while that I think I got to meet a while back.

Yeah, this is Abby Freeman, who was one of our red rover goes to Mars

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