Imaginary Numbers May Be Essential for Describing Reality

A new thought experiment indicates that quantum mechanics doesn’t work without strange numbers that turn negative…

How Universes Might Bubble Up and Collide

To understand how universes might inflate and bump into each other in the hypothetical multiverse, physicists…

The Milky Way Gets a New Origin Story

Over the past two years, astronomers have rewritten the history of our galaxy.

The Search for Dark Matter Is Dramatically Expanding

Physicists are checking whether dark matter tickles different types of detectors, nudges starlight, warms planetary cores,…

Scientists Discover the First Room-Temperature Superconductor

Physicists finally achieved the long-sought goal, but there’s a catch: Their compound requires crushing pressures to…

Mathematical ‘Hocus-Pocus’ Saved Particle Physics

Renormalization, a technique that helps bridge the big and the small, has become perhaps the single…

What If the Big Bang Was Actually a Big Bounce?

New computer simulations model an alternate way of thinking about the cosmos: as a cyclic universe…

What Do the Quark Oddities at the Large Hadron Collider Mean?

Measurements of particles called B mesons deviate from predictions. Alone, each anomaly looks like a fluke,…

What Goes On in a Proton? Quark Math Still Needs Answers

The complex math that governs quark particles is still a mystery—even though a $1 million prize…

Why Do Matter Particles Come in Threes?

Nobel Prize–winning physicist Steven Weinberg's new paper tackles the mystery of why the laws of nature…