We experience the flow of time because it’s a natural outcome of the basic laws of physics. But we may need to build a whole ...

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

Physicists are quietly advancing a radical idea: time might not be a single, thin line but a full three‑dimensional landscape ...

For decades, quantum physics and general relativity have stood as two powerful but separate theories. Quantum physics explains the behavior of tiny particles like atoms and photons. General relativity ...

Every time a coffee mug drops, a satellite orbits or an astronaut floats, we are watching the same phenomenon play out under ...

Two different worlds, they live in two different worlds. Twin planets — the posh Up Top and the gritty Down Below, connected by a TransWorld tower — face each other in such intimate proximity that the ...

An aging saguaro at Saguaro National Park east of Tucson has tilted, tilted and tilted some more — almost to the point of defying gravity. “Wow, this is the leaning tower of saguaro!” said Don Swann, ...