This image from Nasa's Spitzer Space Telescope shows a stellar nursery containing thousand of young stars & developing protostars near the sword of the constellation Orion. I heart the Spitzer space telescope.
The visible space is big, complex and can be incredibly beautiful.The sky (or celestial dome) is everything that lies a certain distance above the surface of the Earth, including the atmosphere and outer space.
Atlas V Arc of Light: Rocket launched with twin Radiation Belt Storm Probes sent to explore the Van Allen Belts that surround Earth. Astrophotographer Mike Killian took this photo from Cape Canaveral Air Force Station in Florida Aug.