Planetary Radio • Jan 03, 2018

Looking Back, Looking Forward with the Planetary Society All-Stars

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On This Episode

Jason headshot sept 2020

Jason Davis

Senior Editor for The Planetary Society

Casey dreier tps mars

Casey Dreier

Chief of Space Policy for The Planetary Society

Mat’s first-ever four-way conversation with Jason Davis, Casey Dreier and Emily Lakdawalla reviews the biggest 2017 events in space exploration and provides their predictions of what to look for in the new year. Bruce Betts follows up with his own list of exciting highlights in a special edition of What’s Up.

Falcon Heavy on the pad
Falcon Heavy on the pad SpaceX's Falcon Heavy rocket stands vertical at its launch pad at Kennedy Space Center, Cape Canaveral, Florida, Dec. 28, 2017.Image: SpaceX

This week's question:

Who chose the names of the Galilean moons of Jupiter?

To submit your answer:

Complete the contest entry form at or write to us at [email protected] no later than Wednesday, January 10th at 8am Pacific Time. Be sure to include your name and mailing address.

Last week's question:

What was the last successful Soviet mission to the Moon?


The answer will be revealed next week.

Question from the week before:

What two orbiters are part of the European Space Agency’s BepiColombo mission to Mercury?


The two orbiters that are part of European Space Agency BepiColombo mission to Mercury are the Mercury Planetary Orbiter and the Mercury Magnetospheric Orbiter.