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 ...

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 ...

It’s possible that these spherules are concretions—formations created by groundwater moving through pores in a rock, which suggests that there might have once been abundant liquid water on Mars.