What is space-time? Depending on how fast you're moving or how close you are do Earth's gravity can change the way time feels ...

For decades, quantum physics and general relativity have stood as two powerful but separate theories. Quantum physics ...

Exploring the BTZ black hole in (2+1)-dimensional gravity took me down a fascinating rabbit hole, connecting ideas I never ...

Some physicists think our reality is a kind of cosmic hologram, with space, time, and gravity as manifestations of a ...

COVER STORYFor centuries, the entangling concept of time has entranced humans. Time has remained constrained to a precept ...

A test using atomic clocks will watch superpositions ride Earth’s curved space-time and see if Einstein can play nice with ...

Space Physiology: Gravity, More or Less 3 minute read TIME March 8, 1968 12:00 AM GMT-5 ...

One: Gravity is quantum - this means gravity and by extension the fabric of spacetime exhibit the various weird properties of quantum world, like superposition and entanglement.

But other than that, it looks a lot like our home; it’s a malleable space-time fabric whose curves produce gravity. The AdS/CFT correspondence opens up the tantalizing possibility that physicists ...

Curious connections between physics and math suggest to Latham Boyle that space-time may survive the jump to the next theory of reality. A decade after the discovery of the “amplituhedron,” physicists ...