Even though we can explore the universe with great precision, there is still a lot we don't know, according to Ulf Danielsson ...

In the mid-19th century, Bernhard Riemann conceived of a new way to think about mathematical spaces, providing the foundation ...

Whenever someone talks about black holes, they almost always talk about the event horizon and the singularity. After all, ...

Interstellar comet 3I/ATLAS, which originated outside our solar system, has reportedly confirmed one of Albert Einstein's ...

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

Centuries before anyone pointed a telescope at the sky, Isaac Newton figured out how gravity works. He showed that any object ...

Advanced simulations have been the subject of fiction from The Matrix to the season two episode of The Twilight Zone (2019), ...

Interstellar object 3I/ATLAS has seemingly confirmed Einstein's general relativity by exhibiting gravitational lensing as it neared the Sun. However, the observed light bending exceeded predictions by ...

Spacetime isn’t something that exists; it’s a model for describing how events happen. Treating events as objects creates philosophical confusion and fuels misconceptions, such as time-travel paradoxes ...

A mathematical investigation of galactic data suggests elusive dark matter is confined to the rules of gravity.

How do we know the speed of light – and why does it have a speed limit at all? Leah Crane explores the history of one of the ...

New strategies may soon allow scientists to test dark energy theories within our own solar system, linking cosmic-scale physics to local observation. Science advances through a cycle of proposing ...