A newly discovered comet has astronomers excited, with the potential to be a spectacular sight in early April. C/2026 A1 ...

A newly discovered Kreutz comet, C/2026 A1 (MAPS), is heading towards the Sun, and its potential to dazzle observers is ...

Arms control experts say the termination of the New START Treaty could set the stage for an unconstrained nuclear arms race.

About sixty-six comet groups have been tentatively identified, of which there are fifteen that can be regarded as ...

The breakup was caused by the extreme conditions near the Sun; during its latest approach, C/2025 K1 flew as close as 0.334 ...

NEW YORK -- It's go time for thousands of America's most dogged competitors. Big or small, sleek or shaggy, imposing or ...

ESA’s Comet Interceptor mission is designed to fly by a long-period comet that could be a pristine remnant from the formation of the solar system. Credit: ESA WASHINGTON — A delay in one European ...

When some scientists and conspiracy theorists saw the strange trajectory of the space object 3I/ATLAS, some of them thought one thing: aliens. With a bizarre shape, an unusually precise trajectory, ...

Democrats accused Trump of trying to "whitewash" the violence of the attack. The White House on Tuesday sought to rewrite the history of the Jan. 6, 2021, attack on the U.S. Capitol, unveiling a new ...

The astronomical community is in a state of shock following the release of a new set of eight high-resolution spacecraft images. These photos reveal the interstellar visitor known as 3I ATLAS with a ...

An instrument aboard NASA’s Europa Clipper spacecraft captured rare ultraviolet observations of an interstellar comet while Earth-based telescopes were blinded by the Sun. The spacecraft’s unique ...