Our entire solar system in this little dot of the Milky Way galaxy. There are around stars in the Milky Way galaxy alone. Each star having possibly one or more planets in orbit. It kind of makes me think of how insugnificant the earth is to the galaxy.
A recent study suggests that each black hole contains another entire universe! According to the new equations, the matter black holes absorb and seemingly destroy is actually expelled and becomes the building blocks for galaxies, stars, and planets in another reality. Essentially, every black hole contains a smaller alternate universe. And our universe might just exist inside a black hole of a galaxy in a much larger universe.