On Mars, discovered underground glaciers that can form the global ocean on the planet

The study was conducted by Stefano Nerozzi, a graduate student at the University of Texas at the University of Austin

Geophysics (UTIG), and Jack Holt from Lunar andUniversity of Arizona planetary laboratory (LPL). In their study, the scientists used data collected by the Shallow Radar (SHARAD) device installed onboard the Martian reconnaissance satellite. It uses radar to detect the structure of the underground layers of the surface of Mars - at a depth of 2.4 km.

Scientists have found that about 1.6 km underThe north pole of Mars has several layers of sand and ice. In some places, these layers are 90% water, they are considered to be remnants of ancient polar ice sheets. In the case of thawing, it is they who will create a global ocean with a depth of at least 1.5 m. As Nerozzi explained, this finding was quite amazing.

“We didn’t expect to find so much water ice here,” he said. “It probably makes it the third largest reservoir on Mars after polar ice caps.”

Essentially, underground ice reserves are“Records” of past climate changes. Their analysis may reveal some very interesting things about the history of the planet. The geometry and composition of these layers can help scientists determine if the Martian climate was ever favorable for life.

As for how all this water got there,The authors of the study suggest that glaciers formed in past periods of warming and cooling on Mars. Scientists have long known that glacial phenomena occur on Mars, caused by changes in the orbit and inclination of the planet (much like Earth).

For about 50 thousand Years Mars leans towards the Sun, and then gradually returns to a vertical position. When Mars is more vertically, the equatorial region heats up, while the north polar region cools, causing the ice caps to advance. When the planet leans toward the Sun, the polar region heats up, causing the ice caps to melt.

It was at this time that the remnants of the ice caps are covered with sand, which historically protected them from sun exposure and dispersion into the atmosphere.