This has been revealed by Nanna Bjornholt Karlsson, a researcher at the University of Copenhagen’s Neils Bohr Institute and reported in zeenews.india.com dated 9 April 2015.
The glaciers are in two bands in the mid-southern and mid-northern latitudes and this has been found from radar data that has been collected by Mars-orbiting satellites along with computer models of ice flows. These show that the planet has about 5.3 trillion cubic feet (150 billion cubic metres) of water locked in the ice.
The results have been published in the journal Geophysical Research Letter.
Scientists are trying to get to the bottom of the mystery of how Mars transformed from a warm, wet and presumably Earth-like planet early in its history into the cold, dry desert that it is today.
There are theories that billions of years ago, Mars, which lacks a protective, global magnetic field, lost much of its atmosphere. Therefore, scientists are trying to determine how much of the planet’s water was stripped away and how much still remains locked in ice in underground reservoirs.
In the opinion of scientists, the glaciers have remained more or less intact because they are protected under a thick layer of dust. They are searching for evidence of river beds, streams and hydrated minerals, and are also studying telltale molecules in the Martian atmosphere. Based on their preliminary studies, they have concluded that the planet probably had an ocean more than a mile deep covering almost half of its northern hemisphere.
Unfortunately, the planet Mars has lost about 87 percent of that water.
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