Most of today’s leading theoretical physicists have a shared perspective about what the next revolution in physics will look like. They think reconciling Albert Einstein’s general theory of relativity ...

To construct a warp drive, we'd need 10 times more negative energy than all of the positive energy in the universe. When you purchase through links on our site, we may earn an affiliate commission.

WASHINGTON — The Space Force is eyeing innovative in-orbit refueling technology, but a key question lingers: is it worth the cost, especially when the military is considering a shift towards cheaper, ...

Chief of Space Operations Gen. Chance Saltzman and U.S. Space Forces Indo-Pacific commander, Brig. Gen. Anthony Mastalir, meet at Joint Base Pearl Harbor-Hickam, Hawaii, May 3, 2024. Credit: U.S. Air ...

Whether space-time exists should neither be controversial nor even conceptually challenging, given the definitions of “space-time,” “events” and “instants.” The idea that space-time exists is no more ...

How can time feel so obvious, so woven into the fabric of our experience and yet, for thousands of years, remain the bane of ...

The following is an extract from our Lost in Space-Time newsletter. Each month, we hand over the keyboard to a physicist or two to tell you about fascinating ideas from their corner of the universe.

"The appearance of such structures sheds new light on the sorts of mathematical objects that nature is built from." Scientists have made the most accurate predictions yet of the elusive space-time ...

To say that we don’t understand the earliest moments of the universe would be an understatement. Indeed, the first second after the Big Bang featured not only the most extreme conditions ever ...

The beloved daylight saving time phrase "spring forward, fall back" is a helpful mnemonic used twice a year for states like ...