The Universe
By: Seymour Simon
The galaxy
Many galaxies in space are so distant that their light fades out before it reaches the earth. They can only be seen with a radio telescopes.
The Milky Way
Our solar system is about thirty thousand light-years away from the center of the milky way.
The black hole
Among the strangest objects in the universe are black holes. A black hole is a region of space where matter is squeezed together so tightly and the pull of its gravity is so powerful that nothing can escape it