Researchers have unveiled a new model for the universe’s birth that replaces cosmic inflation with gravitational waves as the ...

For the first time, scientists have detected two black hole mergers with spins so unusual they may reveal a new generation of ...

Wormholes, conceptual tunnels slicing through spacetime, offer a theoretical shortcut between two distant cosmic points.

Astrophysicists at the University of Chicago have developed physics-based models suggesting that dark energy could be ...

The model questions the popular inflation theory, which most experts believe was facilitated after the universe's birth. The ...

Two recently observed black hole mergers, occurring just weeks apart in late 2024, have opened an extraordinary new window ...

The universe rarely fails to amaze. One of its latest surprises—nicknamed the “Einstein zig-zag”—reveals a stunning arrangement of galaxies and a distant quasar. Together, they produce a gravitational ...

It's a plot device beloved by science fiction: our entire universe might be a simulation running on some advanced ...

Einstein was a great thinker who made plenty of mistakes—errors that sometimes led to more meaningful discoveries in physics, ...

If that were to happen, it could lead to a theory of quantum gravity that would combine Einstein’s general relativity with quantum mechanics. It would also imply that our universe is in truth a ...

The faster you move, the stranger time becomes. By imagining how light travels to two people moving at different speeds, Einstein showed that time isn’t absolute. His thought experiment revealed that ...