For a technical scientific term, entropy is pretty popular. I mean, it was the title of an episode of Buffy the Vampire Slayer, after all. Search the Internet for “entropy” quotes and you’ll find them ...

Neutron stars are unusual compared to the bulk of the observed universe. In fact, in many ways, they behave more like black ...

Taken from the January 2022 issue of Physics World where it first appeared under the headline "The twin streams of time". Sidney Perkowitz reviews The Janus Point: a New Theory of Time by Julian ...

Caltech physicist Sean M. Carroll has been wrestling with the mystery of time. Most physical laws work equally well going backward or forward, yet time flows only in one direction. Writing in this ...

Today’s most advanced clocks keep time with an incredibly precise rhythm. But a new experiment suggests that clocks’ precision comes at a price: entropy. Entropy, or disorder, is created each time a ...

A new analysis of the “Boltzmann brain” paradox suggests our memories and sense of reality could, in theory, be random ...

Every moment that passes finds us traveling from the past to the present and into the future, with time always flowing in the same direction. At no point does it ever appear to either stand still or ...

Your location in this Universe isn't just described by spatial coordinates (where), but also by a time coordinate (when). It is impossible to move from one spatial location to another without also ...