Fine saucers are headed to Mars this week on planetary radio.

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

I'm at Kaplan to the Final Frontier.

I'm at Kaplan of the Planetary Society.

Yes, more of the Red Planet this week.

How do you like that inflammatory opening line?

It's almost accurate, as we'll hear from Rob Manning.

Rob returns to tell us about the system that may help us get much bigger spacecraft

down to the surface of Mars, spacecraft that may someday carry humans.

Bill Nye is also all about fourth rock as he mentions more innovation from SpaceX.

Bruce Betts and I will take a virtual trip down under for this week's

what's up. We begin as we should with Emily

locked wall up. Emily welcome back. You have a question for me? That's a switch.

Yeah, Matt, so my question is, and I'm here I'm taking on the role of Bruce Beth's random space facts,

which is the moon in the solar system with the densest atmosphere.

Oh, well, everybody knows that.

It's Titan, that smoggy moon out at Saturn where's my t-shirt all right well that was a softball

just to worry you up now what's the second densest okay now I know a lot of moons have something like an atmosphere. I mean even our own moon, I know they've detected gases, but I don't know. I bet you've written about this though.

I have indeed.

Some space fans may know that there is another moon that has an atmosphere

that we've seen geysers into and being blown away

and that one is Triton, a moon of Neptune.

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