The "potentially hazardous" asteroid 2025 FA22 will fly close past Earth at more than 24,000 mph on Thursday (Sept. 18). The ...

NASA's Nancy Grace Roman Space Telescope will help scientists better understand our Milky Way galaxy's less sparkly components—gas and dust strewn between stars, known as the interstellar medium.

Every 378 days, Saturn swings into opposition, bringing it closer, brighter, and nearly 10 times easier to observe than at ...

A decade ago, the first gravitational waves confirmed that black holes collide. Telescopes soon revealed shadows of giants ...

Newly released images of the supermassive black hole at the heart of the galaxy M87 show that the plasma that swirls around it has unexpectedly reversed directions.

A large near-Earth asteroid, 2025 FA22, is set to make a close but safe flyby of Earth on Thursday, September 18, astronomers ...

In 1835, six articles about life on the moon appeared in the New York Sun, which caused a stir for a long time – until it ...

The reason it could be heard by teams on multiple telescopes and in all different directions was because that irritating noise was in fact the cosmic microwave background (CMB) – the leftover ...

When the "little red dots" were first discovered in 2022, scientists thought the objects might be galaxies as mature as the Milky Way, which is about 13.6 billion years old. That's because galaxies ...

The Event Horizon Telescope (EHT), which is operated to capture images of black holes, has re-observed the shadow and ring of light structure of the ...