| Term | Definition | Contributor | Modified |
|---|---|---|---|
| Ultraviolet telescopes | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Ultraviolet transient sources | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Ultraviolet transient sources | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Ultra vires | No definition provided | Christopher Rauch | 2023.12.01 |
| Ulvite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Ulvospinel | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Ulysses | No definition provided | Ryan McGranaghan | 2023.04.16 |
| ULYSSES__EPAC | No definition provided | Ryan McGranaghan | 2023.04.16 |
| ULYSSES__GRB | No definition provided | Ryan McGranaghan | 2023.04.16 |
| UlyssesGRBXrayFlareCatalog | Ulysses/GRB X-ray Flare List | Ryan McGranaghan | 2023.04.16 |
| UlyssesGRBXrayFlareCatalog | Ulysses/GRB X-ray Flare List | Ryan McGranaghan | 2023.04.16 |
| ULYSSES__SWICS | No definition provided | Ryan McGranaghan | 2023.04.16 |
| UlyssesSwoopsICMECatalog | Ulysses/SWOOPS Interplanetary CME List | Ryan McGranaghan | 2023.04.16 |
| UlyssesSwoopsICMECatalog | Ulysses/SWOOPS Interplanetary CME List | Ryan McGranaghan | 2023.04.16 |
| ULYSSES__VHM_FGM | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Umangite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Umbilicus--Hemorrhage | No definition provided | Christopher Rauch | 2023.12.01 |
| Umbite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Umbozerite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| umbra | No definition provided | Ryan McGranaghan | 2023.04.16 |