There are many galaxies in the universe.

Source: Tatoeba

How many galaxies are there in the universe?

Source: Tatoeba

Most large galaxies have a central supermassive black hole.

Source: Tatoeba

Astronomers have discovered a galaxy that has almost no dark matter.

Source: Tatoeba

Smaller galaxies have "only" a few thousand stars. The biggest ones have trillions.

Source: Tatoeba

For centuries, astronomers believed that the Milky Way made up the entire universe. Hubble was among the first to show that the fuzzy patches in the sky seen through telescopes were other galaxies, not distant parts of the Milky Way.

Source: Tatoeba