The universe is composed mostly of empty space. But this space is occasionally populated by an amazing assortment of incredible objects. These objects create an orderly, harmonious system known as the cosmos. Close to home, our Solar System consists of planets, moons, asteroids, and comets that circle a central star in an orbital dance that has been going on for billions of years. As we move farther away into deep space, we encounter exotic objects with bizarre properties. Pulsars and Quasars shine with the energy of millions of stars. Neutron stars and black holes distort the very reality of space time itself. And somewhere out there, a mysterious substance known as dark matter composes as much as 90% of the known universe. Welcome to the Cosmos.
Our universe contains an amazing array of celestial objects, sometimes referred to as celestial bodies or astronomical objects. Though most of the observable cosmos is composed of empty space, this cold, dark void that is sparsely populated by a number of astronomical objects that range from the common to the bizarre. Known collectively by astronomers as celestial objects, celestial bodies, astronomical objects, and astronomical bodies, they are the stuff that fills the empty space of the universe. Most of us are familiar with the stars, planets, and moons. But beyond these everyday celestial objects, lies an amazing collection of other wondrous sights. There are colorful nebulae, delicate star clusters, and massive galaxies. Pulsars and quasars add to the mystery, while black holes swallow up every bit of matter that comes too close. And now, the search is on to identify the mysterious, invisible objects known as dark matter. Join Sea and Sky for an intriguing journey as we discover these amazing celestial objects. Click here for a list of credits & sources.