ESA’s decade-long Milky Way Gaia mapping mission still has tons of data to release over the next few years. Expect surprises.

Galaxies are astronomical objects composed of billions or even trillions of stars. Our Earth and solar system are just a tiny ...

We can judge the value of any scientific endeavour based on how much of our knowledge it overturns or transforms.

So how well do you know the Milky Way? Let's test your knowledge of our galaxy's size, age, speed and more with the 15 ...

The Fermi Bubbles, massive shockwaves from a black hole eruption, still expand over the Milky Way. This event reshaped our ...

Recent studies challenge the long-held belief that the Milky Way is a standard model for understanding galaxy formation, ...

A radio telescope in South Africa has unearthed a giant galaxy—dubbed a "cosmic megastructure"—with plasma jets that measure ...

Scientists are keen to get to the bottom of the dark matter puzzle because this phenomenon accounts for the vast majority of the "stuff" in the universe — about 85%, in fact. That means everything we ...

an even bigger cosmic structure, includes the Great Attractor. This enormous concentration of galaxies might give the forces in action more context, indicating that the Great Attractor is a component ...

It is one of over 1 trillion galaxies in the universe and happens to be the most important stellar island near our Milky Way, ...

The new composite image, which combines hundreds of photos from the Hubble Space Telescope, shows the Andromeda Galaxy with ...