The filament of matter stretches 50 million light-years, and contains a row of galaxies 5.5 million light-years long that are ...

If you look across space with a telescope, you'll see countless galaxies, most of which host large central black holes, ...

But the Big Bang theory predicts that about 5% of the universe’s contents should be atoms made of protons, neutrons and electrons. Most of those atoms cannot be found in stars and galaxies – a ...

Our galaxy, the Milky Way, is a beautiful barred spiral galaxy, but we will never see what it looks like from the outside. It ...