![Solar system montage with eight planets](https://planetary.s3.amazonaws.com/web/assets/pictures/_1200x1200_crop_center-center_82_line/PIA10969.jpg 1200w, https://planetary.s3.amazonaws.com/web/assets/pictures/_768x768_crop_center-center_82_line/PIA10969.jpg 768w, https://planetary.s3.amazonaws.com/web/assets/pictures/_576x576_crop_center-center_82_line/PIA10969.jpg 576w, https://planetary.s3.amazonaws.com/web/assets/pictures/_200x200_crop_center-center_82_line/PIA10969.jpg 200w)
Geoff Marcy
Professional planet hunter, University of California, Berkeley
Latest Planetary Radio Appearances
We celebrate our 5th anniversary by learning about discovery of a five-planet star system, the largest found so far. Q&A on Jupiter's red spot.
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