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

The Depths of Space: A New Book About the Pioneer Planetary Probes

Use when no other thumbnail exists

Air Date: 11/29/2004
Run Time: 0:28:50

Listen to the full show:

Or Download mp3



Support Planetary Radio

All were simple yet amazingly successful trailblazers, and two are carrying a controversial message to the stars. Author Mark Wolverton talks about his new book tracing the history of the Pioneer series of spacecraft. Emily wonders about the disappearing Martian atmosphere in the reprise of a Q&A segment, space exploration headlines, and Bruce Betts is on location at the zoo for this week's What's Up segment, including a new 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

Space in Images

Pretty pictures and
awe-inspiring science.

See More

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!