Most normal matter in the universe isn't found in planets, stars or galaxies: An astronomer explains

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

Astrophysicists test a new piece of the sky to probe dark matter and dark energy

In the leading model of cosmology, most of the universe is invisible: a combined 95% is made of dark matter and dark energy.