In a nutshell, string theory is a sprawling realm of theoretical physics that assumes that tiny vibrating strings are the ...

In an unprecedented step, researchers crafted a detailed model compatible with the universe’s accelerated expansion.

If ever spotted in the emptiness of space, according to theoretical physicist Eugeny Babichev of the University of ...

Our universe plays by certain rules, which originate from different branches of physics. But sometimes the rules seem ...

For more than a century, gravity has been the stubborn outlier in physics, resisting every attempt to merge Einstein’s smooth space-time with the jittery world of quantum mechanics. A new wave of ...

The theorized unseen structure of spacetime could also explain of the outstanding questions about the accelerating expansion of the universe.

For more than a century, scientists have wondered why physical structures like blood vessels, neurons, tree branches, and ...

This episode of the Physics World Weekly podcast features Alex May, whose research explores the intersection of quantum ...

At long last, a unified theory combining gravity with the other fundamental forces—electromagnetism and the strong and weak nuclear forces—is within reach. Bringing gravity into the fold has been the ...

The accelerating expansion of the universe is usually explained by an invisible force known as dark energy. But a new study ...

The recent visit to our solar system by the interstellar object 3I/ATLAS has sparked speculation about whether it’s another ...