Planetary Radio • May 31, 2017

Buzz Aldrin and Other Martians

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On This Episode

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Saeed Al Gergawi

Program Director for United Arab Emirates Mars 2117 Program

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Buzz Aldrin

Apollo 11 Astronaut

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Grant Anderson

President and CEO for Paragon Space Development Corporation

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James Green

Senior Advisor to NASA and host of Gravity Assist

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Rebecca Keiser

Head of the Office of Interational Science and Engineering for National Science Foundation

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Marcia Smith

Founder and Editor for Space Policy Online

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Bill Nye

Chief Executive Officer for The Planetary Society

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Casey Dreier

Chief of Space Policy for The Planetary Society

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Bruce Betts

Chief Scientist / LightSail Program Manager for The Planetary Society

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Mat Kaplan

Senior Communications Adviser and former Host of Planetary Radio for The Planetary Society

He walked with Neil Armstrong on the moon, but that may not be his greatest legacy. Buzz Aldrin was joined by other space stars at the recent Humans To Mars Summit. Bill Nye returns with his sense of awe turned up to eleven by the images of Jupiter returned by Juno. Casey Dreier finds good and bad news for science in the White House’s proposed 2018 budget. And there’s a lively night sky to explore in this week’s What’s Up segment.

Apollo Astronaut Buzz Aldrin
Apollo Astronaut Buzz Aldrin Image: Gage Skidmore

This week's question:

What star has the largest proper motion?

To submit your answer:

Complete the contest entry form at or write to us at [email protected] no later than Wednesday, June 7th at 8am Pacific Time. Be sure to include your name and mailing address.

Last week's question:

What is the name of the US mission that will slam a spacecraft into an asteroid in the 2020s as a kinetic impactor demonstration mission? It will be a test of our ability to change the path of a Near Earth Object.


The answer will be revealed next week.

Question from the week before:

What Near Earth Asteroid will the Hayabusa 2 mission visit and return samples from?


Hayabusa 2 is headed for asteroid 162173 Ryugu.