Class 3 nebula
{{aquote|Next time you run across a Class 3 nebula, think of me.|Harry Kim to Derran Tal|2375|The Disease}}
A Class 3 nebula''' was a type of nebula.

In 2375, Derran Tal detected a Class 3 nebula from the Varro generational ship. Harry Kim secretly took her there in person, using one of 's Class 2 shuttles. They found that there was a subspace vacuole near the center of the nebula, acting as a gravitational anchor for the surrounding gas. ()
3
Class 03 nebula