Scientists have discovered an ocean located beneath the Earth's crust that contains more water than all the surface oceans ...
The subterranean aquifer lurking in the mountains contains three times as much water as Lake Mead at full capacity.
Researchers have discovered an underground aquifer in Oregon's Cascade Range is significantly larger than previously thought ...
In a thrilling close approach, the BepiColombo mission captured its final, stunning images of Mercury before its orbit ...