NGC 2174: Emission Nebula in Orion

"nebula-rich" takes you to an APOD entitled "An Orion Deep Field."
"NGC 2174" takes you to a site with a picture and description of this nebula.
"celestial hunter" takes you to a site with information about Orion, the constellation in which this nebula can be found.
"stunning narrow band image" takes you to a site where you can find the picture yet again.
"false-color mapping" takes you to a site with enhanced color pictures of the Eagle Nebula.
"filters" takes you to the same site but with a discription of light and filters.
"closer analogy" takes you to the same site where you can play with the enhancing colors.
"red glow" takes you to an APOD entitled "When Roses Aren't Red."

A Pelican in the Swan

"Cygnus, the Swan" takes you to a site with information about Cygnus.
"North America Nebula" takes you to an APOD entitled "The North America and Pelican Nebulas."
"emission nebula in" takes you to an APOD entitled "Cygnus Nebulosities."
"Pelican and North America" takes you to a site with information about the nebula.
"large and comples" takes you to a site about abstract Astrophysics.
"bright front" takes you to an APOD entitled "Pelican Nebula Ionization Front."
"Samuel Oschin" takes you to a biography about him.
"this striking synthesized" takes you to a site with lots of pictures of nebulaes.