The Pelican Nebula - IC 5070
The Pelican Nebula is located in the constellation Cygnus and is filled with heating gas and new stars. This nebula is a popular target for astronomers because it has an intense mix of evolving gasses and stars. As stars form within gas clouds they heat the surrounding gas and cause it to emit light at various wavelengths. This processes is not entirely uncommon and puts the Pelican Nebula into a classification of nebulae known as emission nebulae.
Credit: NASA/Miodrag Sekulic