NASA explains why it's 'roving' on Mars
A top NASA scientist explains what the agency is looking for as it scours the Martian landscape in search for signs of water.
http://www.ksdk.com/video/1838437560001/1/NASA-explains-why-its-roving-on-Mars
http://bc_gvpc.edgesuite.net/img/963482463001/201209/1198/963482463001_1837675503001_ari-origin29-arc-142-1347543964356.jpg?pubId=963482463001
NASA explains why it's 'roving' on Mars
A top NASA scientist explains what the agency is looking for as it scours the Martian landscape in search for signs of water.
watermars rovertechnologyNASAvpcspace
01:13