For more than a century, physicists have suspected that the familiar three dimensions of space and one of time might be only ...

Quantum mechanics and general relativity are the two pinnacles of 20th-century physics. In their respective fields, scientists have demonstrated time and time again how correct these theories are.

A new study casts doubt on the universe’s accelerating expansion, suggesting dark energy might be weakening over time.

If we were living in a computer simulation, would we be able to tell we were living in a computer simulation? It's a question that's difficult to answer, but physicist Melvin Vopson of the University ...

Physicists explore whether the universe hides extra dimensions. These tiny, curled-up or warped dimensions could explain ...

Our universe would look so different, Kyle. You might not recognize it even if you could be here to see it. Unfortunately, there probably wouldn’t be a whole lot to see. I learned about this from ...

Research by the Atacama Cosmology Telescope collaboration has culminated in a groundbreaking new image that reveals the most detailed map of dark matter distributed across a quarter of the entire sky, ...

Encouraged by successes in understanding black holes, theoretical physicists are applying what they’ve learned to whole ...

Yet according to physics, information is never destroyed. In principle, a burned book is just as readable as the original—if ...

What happens if you do a big jump? Your body goes up into the air. But then it comes back down again. The reason you don’t just keep going up, up, up is because the force of gravity pushes your body ...

In 1919, physicist Theodor Kaluza hypothesized that extra dimensions might solve some outstanding problems in physics. And ...