A more precise definition of the second is crucial to all sorts of physical measurements – but to get there, scientists have ...

A revolutionary timekeeping breakthrough could be on the horizon as scientists explore the thorium-229 nuclear optical clock, ...

Atomic clocks have long been the gold standard for measuring time and frequency. Among them, optical clocks—using atoms like ...

A key springtime marker that attracts 1.5 million visitors to the nation's capital each year hit a major milestone.

President Donald Trump is pushing the House of Representatives to pass a measure that would prevent immediate financial disaster for the District of Columbia.

A technological innovation could revolutionize the precision of navigation systems. A tiny device, shaped like a comb, ...

Reporting from Kolkata and speaking to dozens of key figures in India, we examine the state of the game in the world’s most ...

Parkinson's disease patients and advocates are marking Friday as the start of a new era for treatment of the illness as a ...

In new six-issue minseries, Lizzie seems to be ditching Jon and Damian for what looks a lot like two other versions of herself, via time travel, and embarking on a quest to find her father ...

The Washington Mystics have signaled they’re prioritizing long-term success over short-term wins when they opted to trade two-time All-Star guard Ariel Atkins for the No. 3 pick in the 2025 WNBA ...

During this time, the Southern Hemisphere begins to tilt away from the sun, resulting in cooler weather and shorter days. Here's what to know about the springtime season in the Northern Hemisphere.

The Portland Trail Blazers would move to within three games of 10th place in the Western Conference with a victory Monday night at home against the Washington Wizards. The Wizards (15-51 ...