Scientists are testing a novel way to measure cosmic expansion using time delays in gravitationally lensed quasars. Their ...

Most of us first hear about the irrational number π (pi)—rounded off as 3.14, with an infinite number of decimal digits—in ...

There is an important and unresolved tension in cosmology regarding the rate at which the universe is expanding, and ...

A rise from a suburban shop to a billion-dollar artificial intelligence company began with obstacles far from any university campus. Fei-Fei Li, a professor of computer science at Stanford University ...

By establishing a larger principle for how things shatter, certain energy-intensive tasks could gain an advantage.

Quantum theory is often sold as a story about tiny particles, but its real disruption lands squarely on our everyday sense of ...

It’s a powerful technique, but small uncertainties at each step can add up, something critics argue may be behind the Hubble ...

A team of astronomers using a variety of ground and space-based telescopes including the W. M. Keck Observatory on Maunakea, ...

On Earth, knowing the time feels simple. Your phone pings the same second as a GPS satellite and an atomic clock in a lab.

From machine learning to voting, the workings of the world demand randomisation, but true sources of randomness are ...