Galaxies are collections of stars, gas, dust, and dark matter throughout the universe. Their size and scale can vary considerably. The Milky Way in which we live has 200 billion stars, which puts it ...

Look into the night sky and you'll glimpse the stars from hundreds of billions of galaxies. Some galaxies are swirling blue disks like our own Milky Way, others are red spheres or misshapen, clumpy ...

The Universe is chock-full of oddities: stars that blink in and out without explanation, galaxies that eat one another, black holes gone rogue. It’s no surprise that among the billions of galaxies out ...

An image obtained from observations of large-scale structure of the universe. The numerous objects shown in yellow to red all represent galaxies hundreds of millions of light years away from Earth.

There are billions of galaxies in our universe – more than 10 times the previous estimate of 200 billion – but we know surprisingly little about what they really look like in three dimensions. Unlike ...

Galaxies in the universe come in all shapes and sizes. Some are giant spheres of stars many times larger than the Milky Way. Others are flattened disks, with pancakelike stellar swirls orbiting a ...

The Universe is chock-full of oddities: stars that blink in and out without explanation, galaxies that eat one another, black holes gone rogue. It's no surprise that among the billions of galaxies out ...