Planetary Radio • Sep 23, 2014

Planetary Radio Live: MAVEN Arrives at Mars!

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On This Episode

Richard zurek

Richard Zurek

MRO Project Scientist and Chief Scientist for JPL Mars Program Office

The latest guest of the Red Planet arrived in orbit on the evening of September 22, 2014. Planetary Radio Live was watching with fingers crossed in Pasadena, California. On stage with host Mat Kaplan were the Jet Propulsion Lab’s Rich Zurek, the Planetary Society’s Senior Editor Emily Lakdawalla and Director of Science and Technology Bruce Betts. Society CEO Bill Nye the Science Guy joined the celebration from New York.

Planetary Radio Live: MAVEN panel
Planetary Radio Live: MAVEN panel From left to right: Mat Kaplan, Rich Zurek, Bruce Betts, Emily Lakdawalla, and Bill Nye via satellite.Image: Loren Roberts

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This week's prize is a Planetary Radio v2.1 T-shirt.

This week's question:

How many orbiters has NASA attempted to send to Mars? How many were successful?

To submit your answer:

Complete the contest entry form at or write to us at [email protected] no later than Tuesday, September 30, at 8am Pacific Time. Be sure to include your name and mailing address.

Last week's question:

What country’s goodwill moon rock was stolen but returned in 2003 after it was recovered by a U.S. sting operation?


The answer will be revealed next week.

Question from the week before:

What star has the largest proper motion?


Barnard’s Star is the star with the largest proper motion of any in the sky.