Excavating water-rich rocks.
Image credits: Mars Express HRSC, ESA/DLR/FU Berlin (G. Neukum);
NASA/MOLA Science Team; D. Loizeau et al.
By studying rocks blasted out of impact craters, ESA’s Mars Express has found evidence that underground water persisted at depth for prolonged periods during the first billion years of the Red Planet’s existence.(read more)