Time seems to be one of the most obvious things in the universe: it moves forward, seconds change minutes, and the past ...

Some of the hardest questions in cosmology begin where the usual math gives up. Push Einstein’s theory far enough back toward the Big Bang, and the equations run into a singularity, a point where ...

There's a paper in the open-access New Journal of Physics this week with the hyper-technical title "Obtaining tight bounds on higher-order interferences with a 5-path interferometer". While that might ...

Before a beginners’ physics class at St. Louis’ Washington University, Assistant Professor Edward Lambe plugged in an electric device that shot pennies at a metal disk a few feet away. The pennies ...

Cormac O’Raifeartaigh reviews The Perfect Theory: a Century of Geniuses and the Battle Over General Relativity by Pedro G Ferreira Fighting it out: an artist's impression of two black holes circling ...