Astronomers have found a potential new piece of the ongoing puzzle over “little red dots” (LRDs). It’s a distant smudge in the sky reminiscent of the mysteriously compact, crimson orbs that keep ...

A jet of charged particles moving at almost the speed of light, made from the remnants of a star that was brutally ripped ...

The first solar eclipse of 2026 is about to put on a show, and it will not be a subtle one. An annular “ring of fire” event will briefly turn the Sun into a blazing halo as the Moon passes in front of ...

New data from NASA's Juno orbiter, launched in 2011 in Florida, reveals Jupiter is slightly smaller than astronomers ...

"Mercury is difficult to study because it is a small planet that lies between us and the sun. Most of the time, it is hidden ...

Major reforms to the United Kingdom’s national research funding agency are aimed at boosting the nation's economy.

“Textbooks will need to be updated,” study co-author Yohai Kaspi, a planetary scientist at the Weizmann Institute of Science in Israel, said in a statement. “The size of Jupiter hasn’t changed, of ...

Light is the fastest phenomenon in the universe, clocking in at just under 300,000 kilometers per second. The telescopes that observe that light, from radio waves to gamma rays, are built at rather ...

Shapley’s award of the 2026 Dannie Heineman Prize for Astrophysics will be presented at the 249th AAS Meeting, Jan. 10-14, ...

On September 1, 1859, Carrington was observing the Sun when he witnessed the most powerful event ever recorded. It bears his ...

Last week AES Andes—a subsidiary of the AES Corporation, an American energy company—announced it had scrapped its plans for a ...

Whether the groundhogs saw their shadows or not, here's when the real first day of spring will be, according to NASA.