My Favorite Images from the Planetary Photojoural
I have 1 images in my list

The first time you select an image to My List, a separate browser window will open. This page will list the set of images you have selected as favorites from the Photojournal. This list is kept for a short period of time, approximately 60 days. The way we associate you with your list is through a persistent cookie left on your computer. This cookie is nothing more than a unique key that allows the Photojournal to make this association. Once created, this list is only modifiable from the same computer. Information stored in the cookie on your computer is used by the Photojournal server only during your session. If you configure your Web browser not to use cookies, you will not be able to create and refer back to a personal list of favorite images. To view your current list, click on a marked entry for your list from the catalog page, or add another favorite. For more information, see JPL's Privacy Policy.
Catalog # Target Mission Instrument Addition Date Size
Remove Image from Favorite List PIA04257 Mars 2001 Mars Odyssey
Gamma Ray Spectrometer Suite
2003-03-13 2068x947x3
Thorium is a naturally radioactive element that exists in rocks and soils in extremely small amounts. The region of highest thorium content, shown in red on this gamma ray spectrometer map from NASA's Mars Odyssey, is in northern Acidalia Planitia.
Map of Martian Thorium at Mid-Latitudes