Our galaxy will make for a particularly splendid sight on the dark nights surrounding the new moon phase on July 24.

One amateur astronomer is on a quest to identify every object in the catalog of Lynds’ dark nebulae. Tag along for the journey!

Known as the Hubble tension, the issue arises from conflicting measurements of how fast the universe is expanding. Now, a new ...

The Andromeda galaxy is the galaxy next door, a very faint, fuzzy thing in the night sky, larger than a full moon. Textbooks ...

The Andromeda Galaxy, also known as M31, is more than just a faint smudge in the night sky; it’s a colossal spiral galaxy, ...

A decade of observations by NASA’s Hubble Space Telescope has produced the sharpest and most detailed images of the Andromeda ...

For the photographers honored at the 2025 Astronomy Photographer of the Year awards, the universe is their muse. From our fiery sun to dazzling aurorae, and a sparkling Milky Way to captivating ...

Our galaxy may reside in a billion-light-year-wide cosmic bubble that accelerates local expansion, potentially settling the long-running Hubble tension. Galaxy counts reveal a sparsely populated ...

Earth and the entire Milky Way galaxy might be sitting inside an enormous, mysterious void—a giant cosmic hole making our universe expand faster right here than anywhere else. This unusual idea, ...

The mighty James Webb and Hubble space telescopes united to reveal stars being born inside the Small Magellanic Cloud, which ...

One of the main objectives of the Hubble Space Telescope, launched in 1990, was to measure the size and age of the Universe, as well as the rate at which it is expanding (aka. the Hubble Constant).