Like stretch marks left on skin that expanded too quickly or cracks embedded in freezing ice, cosmic strings are artifacts of ...

While legal U.S. residents need to carry immigration papers on their person and show them if stopped, U.S. citizens are not ...

TSA offers an online portal, TSA ConfirmID, where travelers can pay the $45 fee before arriving at the airport. Passengers ...

Wormholes are often imagined as tunnels through space or time—shortcuts across the universe. But this image rests on a ...

The video drawing the most attention shows what appears to be New York City in 1956. In the clip, viewers see classic cars, ...

The way time ticks forward in our universe has long stumped physicists. Now, a new set of tools from entangled atoms to black ...

In an effort to bring together the domains of gravity and quantum theory, Albert Einstein and Nathan Rosen proposed a ...

Bali may soon require tourists to show proof of funds, return tickets and travel plans as the island considers new measures ...

CLEVELAND, Ohio – Starting next week, air travelers without a Real ID will have the option of paying $45 for a short-term ...

The first time Patrick Thaw saw his University of Michigan friends together since sophomore year ended was bittersweet. They ...

Snow, sleet, and ice are all possible, particularly across the Piedmont Triad, and regardless of what falls, several hours of ...