Gravitational waves may leave a permanent timing gap in light, revealing how gravity preserves information through a memory ...

Gravity used to be the most dependable rule in the cosmic rulebook, the quiet background force that never changed its mind.

A growing body of theoretical and experimental work in physics is converging on a striking possibility: time, the dimension humans experience as a constant forward flow, may not be a fundamental ...

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 ...

Quantum mechanics has always carried a quiet tension. At its core, the theory allows particles to exist in many states at once, described by a mathematical object called a wavefunction. Yet daily life ...

A persistent "gravity hole" beneath Antarctica gives scientists a window into Earth's deep interior, showing how processes ...

Gravity feels reliable—stable and consistent enough to count on. But reality is far stranger than our intuition. In truth, the strength of gravity varies over Earth's surface. And it is weakest ...

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, ...

The geoid (the surface of equal gravitational potential of a hypothetical ocean at rest) serves as the classical reference ...