Geothermal activity on the icy dwarf planets Eris and Makemake

One Martian year of Spirit and Opportunity on Mars with Jim Bell, Cornell University; Q and A on a crusty moon; special trivia contest prize.Learn more about your ad choices. Visit megaphone.fm/adchoi...

28 Nov 200528min

New Horizons PI Alan Stern on the mission to Pluto, and discovery of 2 new moons. Q&A: movies from rocket launches. New trivia contest.Learn more about your ad choices. Visit megaphone.fm/adchoicesSee...

21 Nov 200528min

The Planetary Society celebrates 25 years with 300 close friends, including Ray Bradbury and Bill Nye. Also, a new What's Up space trivia contest.Learn more about your ad choices. Visit megaphone.fm/a...

14 Nov 200528min

Steve Wall, deputy leader of the Cassini RADAR team, on new images of Huygens' landing site and a shoreline. Asteroids on Q&A, new What's Up Contest.Learn more about your ad choices. Visit megaphone.f...

7 Nov 200528min

Dava Sobel has just written The Planets. Not a drop of water on Jupiter's moon Io in Q and A, space headlines, and Mars comes close.Learn more about your ad choices. Visit megaphone.fm/adchoicesSee om...

31 Okt 200528min

The beloved author, poet and visionary is back to talk about his inspirations, the romance of space exploration, and much more. Q&A on the biggest object in the Kuiper Belt, and a new space trivia con...

24 Okt 200528min

Venus Express Project Scientist Håkan Svedhem talks about the first mission to the mysterious planet in more than a decade. Q&A on Jupiter's Great Red Spot and other storms. What's Up announces TWO ne...

17 Okt 200528min

Swift satellite principal investigator Neil Gehrels on what causes the universe's biggest explosions. Q&A on the rings of Saturn, and a new space trivia contest during our What's Up segment about the ...

10 Okt 200528min