Every year, Santa Claus races around the globe in a matter of hours to bring presents to children all over the world.

For more than a century, gravity has been the stubborn outlier in physics, resisting every attempt to merge Einstein’s smooth ...

Physicists spotted a “terribly exciting” new black hole, doubled down on weakening dark energy, and debated the meaning of ...

The speed of light is one of the most fundamental constants in physics, yet it has never been directly measured in one ...

Physics World is delighted to announce its Top 10 Breakthroughs of the Year for 2025, which includes research in astronomy, antimatter, atomic and molecular physics and more. The Top Ten is the ...

A new technique allows complex interactions in materials to be simulated using Monte Carlo simulations thousands of times ...

Conduction is the direct flow of heat from your warm body into your colder surroundings. In winter, all that heat escaping ...

Knots are everywhere—from tangled headphones to DNA strands packed inside viruses—but how an isolated filament can knot ...

AT&T and SpaceX were both spectral beneficiaries of EchoStar’s recent exit from the commercial cellular space, but the CEO of the former remains non-plussed by the ability of latter to become a ...

Ufotable digs into the technical and artistic magic that propelled the film's generational battle between Tanjiro and Akaza.