Remember 3I/ATLAS? Yes, the interstellar comet that made plenty of headlines in 2025 is still romping through our solar ...

When you look up at the night sky, it appears unchanging. But if you look deep enough you will find that the sky is in fact ...

It comes down to the speed at which these objects were moving during their formation, and the strength with which their ...

A proposed five-satellite Cosmic Positioning System could measure cosmic distances directly and help address discrepancies in the Hubble constant through solar system–scale triangulation.

Astronomers have captured the first views of a young sun-like star blowing bubbles, offering a rare glimpse at how our solar ...

This newly discovered jellyfish galaxy, named COSMOS2020-635829, has a redshift of z = 1.156, meaning astronomers are seeing it as it existed about 8.5 billion years ago. That makes it the most ...

Out in the Kuiper Belt, the massive doughnut of debris beyond Neptune, about one in 10 kilometer-scale objects have surprised ...

All the “normal” matter, like the stars, gas, dust, and people, is called baryonic matter, and it’s basically the tiny visible fraction of a universe that’s mostly invisible and still not fully ...

Astronomers have found growing evidence that runaway black holes are hurtling through galaxies at extreme speeds, leaving ...

A newly studied solar system breaks the usual planet pattern, raising fresh questions about how rocky and gas planets form.

With Area 51 ruled out by President Obama, where might aliens really be hiding? Scientists have now revealed the best candidates.

Researchers detail a 2035 Solar Oberth maneuver mission using chemical propulsion to intercept interstellar comet 3I/ATLAS within 35 to 50 years.