Massive Reservoir of Water That Could Submerge Mars Entirely Discovered Beneath Its North Pole

Using ground-penetrating radar, scientists detected a massive reservoir of frozen water sandwiched by layers of sand beneath the northern polar ice cap on Mars. This reservoir contains so much ice that, if melted and brought to the surface, it would submerge the entire planet. “This was a surprise even for us,” said Stefano Nerozzi, the lead author of the new paper.