Researchers are using black hole “shadow” images to test whether Einstein’s relativity remains unshakable. With ...

Explore the science and mystery of time travel — from Einstein’s relativity and paradoxes to wormholes and real-life claims.

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

Black holes are considered cosmic gluttons, from which not even light can escape. That is also why the images of black holes ...

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

Interstellar comet 3I/ATLAS has changed color for the third time as it peeks out from behind the sun. The biggest, brightest ...

In this video, we explore Albert Einstein's theory of general relativity, focusing on his insights into gravity and ...

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 ...

Pairs of black holes have been detected in the past through their gravitational effects, but until now, scientists have never ...

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 ...

Some time travel movies totally miss the mark and create plot holes, while others get the science absolutely right.

It’s an arbitrary and preternaturally vexing dividing line between Illinois on Central time and Michigan on Eastern time.