Planetary Radio • Mar 29, 2004
A Salty Sea on Mars
On This Episode
![20130822 Mars Herkenhoff NASA lg](https://planetary.s3.amazonaws.com/web/assets/pictures/_576x576_crop_center-center_60_line/20130822_MarsHerkenhoffNASA-lg.jpg)
Ken Herkenhoff
Mastcam-Z Co-Investigator for USGS Astrogeology Science Center
Mars Exploration Rover Opportunity has returned conclusive evidence that water once flowed over the Meridiani Planum. The probe's Microscopic Imager had a big part in this discovery. We talk with the lead scientist for the MI Ken Herkenhoff. Emily Lakdawalla wonders if night ever comes to people living in a double star system, and Bruce Betts gets his whole family in on the fun during this week's What's Up!