Two mathematicians have proved that a straightforward question—how hard is it to untie a knot?—has a complicated answer.

The Buffalo Bills played a masterful, physical brand of football chess against the suddenly hot Kansas City Chiefs, winning ...

High-frequency weekly indicators provide an up-to-date forecast and nowcast of the U.S. economy, signaling changes ahead of ...

Astronomers are rethinking one of cosmology’s biggest mysteries: dark energy. New findings show that evolving dark energy models, tied to ultra-light axion particles, may better fit the universe’s ...

For the first time, an international research team led by the Shanghai Astronomical Observatory (SHAO) of the Chinese Academy ...

Learn how Hubble is measuring the expansion rate of the Universe in this new explainer from NASA's Goddard Space Flight ...

Water types include spring water, mineral water, distilled water, sparkling water, and purified water, among others. Some types may have more nutrients than others. Drinking enough water daily is ...

Next week sees 25 new games and bundles heading to the PlayStation platform. Fast-paced 2D action-platformer where you step into the boots of a young knight on his very first adventure. Run, jump, ...