Help Shape the Future of Space Exploration

Join The Planetary Society Now  arrow.png

Join our eNewsletter for updates & action alerts

    Please leave this field empty
Multimedia IconMultimedia

Alan Stern's Biggest Planetary Science Mysteries

Use when no other thumbnail exists

Air Date: 06/08/2009
Run Time: 0:30:44

Listen to the full show:

Or Download mp3


  • Alan Stern, New Horizons Principal Investigator, Johns Hopkins University Applied Physics Laboratory


Support Planetary Radio

Planetary scientist and New Horizons Principal Investigator Alan Stern recently came up with his list of the biggest unanswered questions in planetary science. He reviews most of them on this week's show. Bill Nye is caught at the airport returning from the Federation of Galaxy Explorer's annual ball. A classic Q&A from Emily Lakdawalla prepares us for the Saturnian equinox. Bruce Betts calls in his What's Up report from Virginia where he was helping to prepare the LIFE experiment for a trip to Phobos. It didn't keep him and Mat Kaplan from offering a new new space trivia contest.


No trivia contest spoilers please!

Leave a Comment:

You must be logged in to submit a comment. Log in now.
Facebook Twitter Email RSS AddThis

Planetary Radio Search


Advocate for Space!

Fifteen years ago, Society members and passionate space advocates like you helped save the Pluto mission. Now we can do the same for missions to Europa and Mars.

Join over 27,600 people who have completed their petition and consider a donation to support advocacy efforts.

Sign Our Petition

Fly to an Asteroid!

Send your name and message on Hayabusa-2.

Send your name

Selfies to Space!

Take flight with a selfie on LightSail™ in 2016!

Send a Selfie Now

Connect With Us

Facebook! Twitter! Google+ and more…
Continue the conversation with our online community!