Plenty of action scenes rely on doubles, but some stars insist on stepping into the danger zone themselves. They train for months, learn complex choreography, ...

Scientists have built the world's most accurate atomic clock - and it's so precise it could redefine the second.

Scientists claim a lutetium-ion atomic clock would be off by no more than about one second over 300 billion years.

Take a second and turn it into trillions of moments. Measure each one. That's how precisely an atomic clock at Singapore's ...

The lab-based timepiece 1, made by researchers at the National University of Singapore (NUS) using the rare-earth metal lutetium, is four times more accurate than the previous best clock 2, which was ...

The moon’s surface experienced a violent encounter with a comet or an asteroid — and has a massive battle scar to prove it. The space rock, estimated to be the size of building reaching between three ...

Qatar is exchanging proposals between Iran and the United States in an effort to restart negotiations, with mediation teams ...

IAEA raises its nuclear forecast as small modular reactors gain momentum, with the NRC fast-tracking a new SMR project in ...

Optical lattice clocks achieve fractional frequency uncertainties of 10⁻¹⁸, yet stability is constrained by the dead time between cooling, preparation, interrogation, and detection. This sampling ...

September's best HBO Max thrillers streaming right now include 'Fuze' with Theo James and two Tom Cruise classics from the ...

A planned nuclear cooperation deal between the United States and Saudi Arabia won't include the toughest inspection regime the U.N.'s atomic watchdog has to offer, but it's going to come close on the ...

Startup Bluecore Energy has raised $50 million in seed funding to develop floating nuclear power plants intended to supply ports and other locations with rapidly growing energy demands. The California ...