At just 25, Cecilia Payne-Gaposchkin applied quantum physics to a treasure trove of astronomical observations to show that stars are mostly hydrogen and helium.

Welcome to this week’s look at quantum computing. Today, we track a new deal in the UK, a fresh arm for U.S. defense, and ...

Time crystals, a state of matter once thought physically impossible, could soon be on a banknote.

The quantum world is already full of surprises, but a new discovery has added an entire wing to what scientists call the ...