This galaxy formed just 930 million years after the Big Bang, offering a rare glimpse into the universe's early years.

The Perseid meteor shower takes place each year as Earth travels through the debris shed by comet 109P/Swift-Tuttle.

Acheron Fossae is filled with dramatic landscape features — most notably, its namesake fossae, or fault-like channels that criss-cross the surface. Here, the land is split into raised ridges known as ...

Astronomy and space sciences have mostly avoided the fraudulent practices of paper mills and predatory journals, but that ...

A final "gee-whiz" fact you can reveal to your friends is that what you are seeing in Monday's sky is an illusion of ...

A sturdy scientific tool for kids, we put the Smithsonian Planetarium Projector to the test in our in-depth review.

Twin orbs of superhot plasma at the Milky Way's center known as the "Fermi bubbles" contain inexplicable clouds of cold hydrogen, new research reveals. They could help scientists figure out when our ...

This stunning view of the full Sturgeon Moon suspended between New York's iconic skyscrapers was taken by Nazli Zeynep ...

Liftoff of a Falcon 9 rocket carrying 24 of Amazon Project Kuiper spacecraft is scheduled for 8:35 a.m. ET (1235 GMT) on ...

The rate of human-produced light is increasing in the night sky by as much as 10% per year, making it difficult for astronomers to study the night sky.

For most of the past decade, forecasters have been able to use satellites to track these smoke plumes, but the view was only ...

Of course, 3I/ATLAS is no ordinary comet. Discovered on July 1, 2025 by the Asteroid Terrestrial-impact Last Alert System ...