Physicists are getting closer to creating a long-sought ‘nuclear clock’. This device would keep time by measuring energy ...

Spring arrived officially at 10:46 a.m. Philadelphia time Friday, the instant when the sun beamed its most direct light on the equator. But whether the atmosphere is prepared to accept that ...

Ancient rocks in Sweden are acting like a “rock clock,” helping scientists finally pin down when major Cambrian climate changes happened.

Cryo Archive is the first map in Marathon set aboard the titular ship. This is an endgame location requiring full teams, a ...

This breakthrough in precision timing is about the size of your fingernail and only loses one second every 30,000 years.

A fiery streak across the sky and a loud boom greeted many residents of northeast Ohio on the morning of March 17. The rare celestial spectacle, which took place a little before 9 A.M. Eastern ...

A new study focuses on krypton gas in the hopes of understanding how ancient coastlines and landscapes change in Earth’s past ...

In a stroke of luck, astronomers saw the comet C/2025 K1 (ATLAS) break into four or five fragments in November after it passed close to the sun.

The Doomsday Clock—a symbolic device to signal an array of existential threats to the world since 1947—was recently moved to ...

For example, on Saturday, the day before the time change took effect, sunrise in Boston was at 6:09 a.m. and sunset at 5:41 p.m., according to the National Weather Service. On Sunday, after the clocks ...

Daylight saving time in 2026 will begin on Sunday, March 8, when clocks spring forward one hour. Most of the U.S. observes daylight saving time, with the exception of Hawaii and most of Arizona.