A new study shows how Milky Way chemical tracks emerge from shifting star formation and gas supply, reshaping ideas about the ...

The Milky Way is not the neat, flat pinwheel many of us learned about in school. Fresh data from precision star maps now show ...

The Milky Way was once a textbook example of how a spiral galaxy should form and evolve. Now a wave of new observations and ...

Astronomers from the Harvard-Smithsonian Center for Astrophysics (CfA) and elsewhere report the discovery of a new brown dwarf about 60 times more massive than Jupiter. The newfound substellar object, ...

NASA’s SPHEREx Observatory maps the entire sky in 102 infrared colors, enabling 3D galaxy distribution studies, cosmic ...

Scientists discovered 128 new moons orbiting Saturn, bringing the planet’s total to 274. Many of these moons are “only a few ...

Dec. 19 (UPI) -- Comet 3I/ATLAS passed its nearest point to Earth early Friday and approaching within 168 million miles.

In 2025, astronomers sharpened their view of the planetary system around Proxima Centauri — the sun's closest stellar ...

So, to create a must-read story list for you, we asked our staff to select their favorite pieces of 2025. Alas, while you're ...

The interstellar comet 3I/ATLAS is just days away from coming as close to Earth as it will ever get. Here's how you can track ...

While online conspiracies swirl, comet 3I/ATLAS made a close pass by Earth on Dec. 19, giving astronomers a rare glimpse of a ...

Space is always inspiring and 2025 was no exception, with finding Betelgeuse’s buddy, debuting a prolific survey telescope ...