| Term | Definition | Contributor | Modified |
|---|---|---|---|
| Galaxy cluster counts | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Galaxy clusters | An aggregation of galaxies, made up of a few to a few thousand members, which may or may not be held together by its own gravity. | Ryan McGranaghan | 2023.04.16 |
| Galaxy collisions | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Galaxy colors | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Galaxy counts | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Galaxy dark matter halos | A vast region surrounding a galaxy where dynamical tracers reveal a large amount of hidden mass. The halo has considerable mass but relatively low luminosity, suggesting the presence of a lot of dark matter. | Ryan McGranaghan | 2023.04.16 |
| Galaxy disks | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Galaxy distances | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Galaxy dynamics | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Galaxy dynamics | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Galaxy encounters | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Galaxy environments | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Galaxy equators | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Galaxy evolution | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Galaxy evolution | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Galaxy_Evolution_Explorer | GALEX | Ryan McGranaghan | 2023.04.16 |
| Galaxy formation | The study dealing with the processes that gave rise to galaxies in a remarkably early Universe. | Ryan McGranaghan | 2023.04.16 |
| Galaxy fountains | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Galaxy fountains | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Galaxy groups | No definition provided | Ryan McGranaghan | 2023.04.16 |