Nebula come in two predominant flavors; emission and reflection. Reflection nebula are basically dust and stuff reflecting starlight. They are typically blue, but can be reddish or sometimes yellowish. Through a large aperture telescope they are etherial to look at, and generally have the shapes we see in astrophoto’s. With a camera though, we can reach unprecedented detail and we don’t even have to be in orbit!

Emission Objects
Reflection Nebula