My husband is an astronomy professor, so when I saw the Out of This World challenge, I just KNEW I had to submit. I asked him for a list of his favorite things in the universe, and had him write out some notes. A few of these fascinating phenomena, like the Pleiades, are visible with the naked eye; others, like the Eagle Nebula, have been photographed beautifully by the Hubble Space Telescope. Some are named for the constellations in which they appear, while others get their names from the objects they resemble. The universe may be mostly made of empty space, but everywhere you look, there's beauty.