The team packed the hellbenders up and drove to a river in Middle Tennessee, where biologists donned wet suits and snorkels and hopped into the cold streams. They deposited the hellbenders under the ...

A rock containing many smaller round stones could indicate that there was once a large amount of liquid water on the Red Planet.

By studying seismic waves, researchers have found a layer deep beneath the surface of Mars that could contain enough liquid ...

Bishop and Lane suggest underground water could have formed clays and carbonates billions of years ago – either through subsurface reactions with rocks or precipitation ... they expected to find large ...