Planetary Radio • Sep 06, 2004
Billions of Earths?
On This Episode
![](https://planetary.s3.amazonaws.com/web/assets/pictures/_576x576_crop_center-center_82_line/PIA10969.jpg)
Geoff Marcy
Professional planet hunter for University of California, Berkeley
Professional planet hunter Geoff Marcy of UC Berkeley returns to share astounding news of newly-discovered Extrasolar Planets that are much closer in size to our Earth. Meteors, meteoroids and meteorites...Emily Lakdawalla knows the difference. Bruce Betts drops in with a new What's Up! space trivia contest. Win your Planetary Radio t-shirt!