If true, the idea would blow past one of physics’ most sacred limits: that parallel versions of reality can never talk to each other. And if information could leak between outcomes, it could mean ...

Why Information, Not Matter, May Be the True Foundation of Reality - Rethinking Reality Through Physics, Information, ...

It feels so obvious that time moves forward that questioning it can seem almost pointless.

The shape of the cosmos depends on a balance of two competing forces: the pull of gravity and the expansion driven by dark ...

A new theory suggests the universe’s greatest secrets are hiding in a “zeptouniverse” that’s ready to be explored—without ...

UC Santa Cruz physicist Stefano Profumo has put forward two imaginative but scientifically grounded theories that may help solve one of the biggest mysteries in physics: the origin of dark matter. In ...

New data from major dark-energy observatories suggest the universe may not expand forever after all. A Cornell physicist calculates that the cosmos is heading toward a dramatic reversal: after ...

The photograph, titled “Underwater Hunting,” was a finalist for the 2025 Global Physics Photowalk. The competition, held ...

In our three-dimensional space, elementary particles neatly filter into either bosons or fermions. But in lower dimensions, ...

A new JCAP study tests an “emulator” to reconstruct the large-scale structure of the cosmos If you think a galaxy is big, compare it to the size of the Universe: it’s just a tiny dot which, together ...

“For the last 20 years, people believed that the cosmological constant is positive, and the universe will expand forever,” says Tye, a professor emeritus at Cornell. A positive constant acts like a ...

The particles that are in an atom: protons, neutrons and electrons The particles that are in protons and neutrons: quarks The four fundamental forces: gravity, electromagnetism, the strong force and ...