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Planetary RadioApril 7, 2015

Humans Orbiting Mars: Report on the Workshop

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On This Episode
Headshot of G. Scott Hubbard
G. Scott Hubbard

Advisory Council, The Planetary Society

Headshot of John Logsdon
John M. Logsdon

Board of Directors of The Planetary Society; Professor Emeritus and founder, Space Policy Institute, The George Washington University

Bill Nye headshot head shot
Bill Nye

Chief Executive Officer, The Planetary Society

A human mission to orbit Mars might be possible by 2033, and it might be accomplished at reasonable cost and with existing or nearly-ready technology. Three leaders of a recent Washington DC conference on this topic provide a report. Emily Lakdawalla has been playing with spectacular new images from Saturn. Bruce Betts and Mat Kaplan enjoyed the blood red, totally-eclipsed moon, and they also enjoy offering yet another space trivia contest as we learn What’s Up.

Journey to Mars


Journey to Mars
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Trivia Contest

This week's prizes are a 200-point account worth $200 AND a stylish Planetary Radio t-shirt!

This week's question:

What are trans-Neptunian objects in a 2:1 orbital relationship with Neptune called? (2 orbits of Neptune, 1 orbit of the body)

To submit your answer:

Complete the contest entry form at or write to us at no later than Tuesday, April 14th at 8am Pacific Time. Be sure to include your name and mailing address.

Last week's question:

What constellation appears on the flags of Australia and New Zealand? (Come on Southern Hemisphere patriots and fans!)


The answer will be revealed next week.

Question from the week before:

What is the approximate latitude of the center of Jupiter’s Great Red Spot?


The center of Jupiter’s Great Red Spot is at roughly 22 degrees south.

Listen more: lunar eclipse, Cassini, Future Robotic Missions, Iapetus, human spaceflight, Planetary Radio, Mars, Saturn's moons, Saturn, conference report, Bill Nye

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