Earth’s rotation reached record speed in 2025, shortening days by up to 1.63 ms. It could be about to happen again as Earth continues to spin more quickly.

Spurred by rising utility bills, St. Peter’s-San Pedro Episcopal Church in Salem, Mass., looked for alternatives. Its “Heaven ...

As though celebrating one of the year’s astronomical highlights, the fireflies have begun enchanting the darker spaces of the ...

Summer arrives for northern observers as the Moon visits Venus, Uranus, and Mercury. Plus: globular cluster M15, double star ...

ESA’s Proba-3 mission has achieved a spacefaring marvel: two satellites flying in perfect formation to mimic total solar ...

Adventure seekers and travelers might argue that summer informally begins with the Memorial Day weekend. Then there's solar ...

West Paducah’s Shawnee Steam & Fossil Plant fired its first coal stack — generating electricity for thousands inside the ...

Gaia, Europe’s Milky Way–mapping spacecraft, shut down earlier this year. It was arguably the most important—and most ...

Just last week, for instance, the Hayden Planetarium at the American Museum of Natural History (AMNH) in New York City ...

The monstrous 85-mile-wide comet C/2014 UN271 is the second most distant body originating from the Oort Cloud found to be ...