Across two very different continents, scientists are mapping vast systems of ancient tunnels that were not carved by rivers ...

Astronomers found an interstellar "tunnel" - a cosmic channel that connects our solar system to distant stars, according to a ...

For instance, one of the biggest puzzles in physics is the black hole information paradox. In the 1970s, Stephen Hawking ...

The surge of traffic, and accidents, on the highway that leads to the burgeoning industrial center in northern Nevada is ...

With this plan foiled by needing space for Lincoln's big old head, Borglum intended instead to place a grand room within the ...

In 1993, researchers exploring a cave in southern Italy found a sinkhole leading to a tunnel. At the end of the tunnel was a ...