Discover why the universe has no centre or edge. Learn how the Big Bang happened everywhere at once and why every observer ...

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

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, ...

REx sample return capsule contained rock from the asteroid Bennu. NASA/Keegan Barber Mary Magnuson, Collecting asteroid ...

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).

The Andromeda Galaxy, located 2.5 million light years away, has fascinated observers for centuries. Once believed to be part of the Milky Way, everything changed in 1923 when Edwin Hubble identified ...

Astrophysicists suggest our galaxy may lie inside a "cosmic void" - offering a new explanation for the universe’s conflicting ...