Does water exist today on Mars? Yes, although the only place on Mars [ http://www.nineplan…] known to have water [ http://science.nasa…] is the North Polar Cap [ http://antwrp.gsfc.…], and that water [ http://www.nyu.edu/…] is frozen. Views of this potentially life-enabling water-ice are usually obscured [ http://antwrp.gsfc.…] -- in the winter by darkness and in the summer by clouds [ http://antwrp.gsfc.…]. Last April, however, the orbiting Mars Global Surveyor spacecraft [ http://nssdc.gsfc.n…] was able to get a good glimpse of the water-bearing cap [ http://antwrp.gsfc.…] just before Martian spring. Low, dark layers in the above image [ http://www.msss.com…] are thought to contain a large amount of sand [ http://waynesword.p…], while high, light layers likely contain higher amounts of water-ice [ http://antwrp.gsfc.…]. The image spans an area about 5 kilometers across.
Explanation
Does water exist today on Mars? Yes, although the only place on Mars [ http://www.nineplan…] known to have water [ http://science.nasa…] is the North Polar Cap [ http://antwrp.gsfc.…], and that water [ http://www.nyu.edu/…] is frozen. Views of this potentially life-enabling water-ice are usually obscured [ http://antwrp.gsfc.…] -- in the winter by darkness and in the summer by clouds [ http://antwrp.gsfc.…]. Last April, however, the orbiting Mars Global Surveyor spacecraft [ http://nssdc.gsfc.n…] was able to get a good glimpse of the water-bearing cap [ http://antwrp.gsfc.…] just before Martian spring. Low, dark layers in the above image [ http://www.msss.com…] are thought to contain a large amount of sand [ http://waynesword.p…], while high, light layers likely contain higher amounts of water-ice [ http://antwrp.gsfc.…]. The image spans an area about 5 kilometers across.
