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 ...
So many comets have failed to live up to predictions that many people have become cynical about them, so why does this happen ...
Germany's U-505 submarine was the 1st warship captured by the US Navy in over a century and top secret during World War II.
These are tech expert Marc Salzman's top CES picks for USA TODAY after his hands-on with future gadgets and gear in Las Vegas ...