Physicists tested light speed using cosmic gamma-ray bursts. Study confirms Einstein's prediction that all light colors travel at same speed.

Last Word is New Scientist’s long-running series in which readers give scientific answers to each other’s questions, ranging ...

An experiment has visualized a prediction about objects traveling at the speed of light known as the Terrell-Penrose effect, ...

E-bikes and e-scooters will have to slow down across New York City starting Friday, as transportation officials roll out a new 15-mile-per-hour speed limit. The city’s Department of Transportation ...

Plans to cut speed limits to 20mph and hundreds of homes earmarked for the countryside are some of the most significant ...

These 16 electric bikes are redefining how we ride in 2025—and many of our favorites are already marked down for Black Friday.

Road, but it's missing the coveted swaybar disconnect. Is this "must-have" feature worth the hassle? He's dropping $54,500 for a truck with too many options. Why is the whole process one big hurang?

The Sunnyvale lab integrates femtosecond lasers with precision motion control to achieve submicrometer accuracy in microfabrication applications. Advanced technologies like Infinite Field of View ...

Not every great athlete makes a great golfer. We’ve all seen it — the explosive basketball player who can’t find rhythm in their swing, or the track star whose foot speed doesn’t translate to clubhead ...

More automated enforcement cameras could soon be on California roads. State lawmakers sent a pair of bills to the governor to address use of red-light and speed cameras. The Owner-Operator Independent ...

If there is an absolute law in the universe, it’s that nothing can travel faster than the speed of light. For science-fiction enthusiasts, that’s a bit depressing. Space is big, and while the speed of ...