Listen to your favorite National Geographic news daily, anytime, anywhere from your mobile phone. No wires or syncing. Download Stitcher free today.
Sunday, November 22, 2009 |
Sunday, November 22, 2009 |
Photo: Liquid Water Recently Seen on Mars?Scientists think the water could stay liquid even in the frigid Martian arctic because of its high concentration of perchlorates, salts that acts like antifreeze. Images courtesy Image NASA/JPL-Caltech//University of Arizona/Max Planck Institute
|
ADVERTISEMENTNATIONAL GEOGRAPHIC'S PHOTO OF THE DAY |
|
ADVERTISEMENT
|