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

Galaxy Builder Andrew Benson

Use when no other thumbnail exists

Air Date: 01/25/2010
Run Time: 0:28:52

Listen to the full show:

Or Download mp3



Support Planetary Radio

Almost 85 years have passed since Edwin Hubble first categorized galactic shapes. Now we finally know why they form this way. Cal Tech cosmologist Andrew Benson takes us through his Galform computer model. Emily Lakdawalla explains how you can select a site on Mars to be imaged. Bill Nye reports from SpaceX with two special guests. It's a chilly night for What's Up with Bruce Betts and Mat Kaplan, but they'll still give away a signed copy of William Hartmann's Traveler's Guide to Mars" in the new space trivia contest."

Related Links:


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!