| Nebula galaxy variations | Size • Composition • Energy production |
| Crystal galaxy variations | Size • Composition • Energy production |
| Nebula galaxy description | Comprised of luminous clouds of cosmic dust and gas with complex patterns and colors |
| Radiant galaxy variations | Size • Composition • Energy production |
| Crystal galaxy description | Composed of solid crystals with intricate shapes that reflect and refract light, creating eerie beauty and travel hazards |
| Radiant galaxy description | Intense fiery balls of plasma that emit massive amounts of X-rays and gamma rays |
| Alternate timeline galaxy types | Crystal • Nebula • Radiant |
