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

Mars Express Confirms Lots of Polar Ice! Where's the Rest?

Use when no other thumbnail exists

Air Date: 03/26/2007
Run Time: 0:28:52

Listen to the full show:

Or Download mp3



Support Planetary Radio

Jet Propulsion Lab Principal Scientist Jeffrey Plaut is also a Co-Principal Investigator on the MARSIS radar carried by the European Space Agency's Mars Express Orbiter. He talks about what the instrument has learned about the 2.5-mile thick ice at the Martian south pole and about where the rest of the Red Planet's once vast amount of surface water may have gone. Emily Lakdawalla's Q&A names the winner of a race to the stars. Bruce Betts fears the black helicopters as he tells Mat Kaplan about the night sky and announces a 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!