Advanced Composition Explorer
Also known as Explorer 71. Original add-on by gironde
Astron
A Soviet space telescope that sees in ultraviolet light
Explorer 6
The satellite that took the first-ever photograph of Earth in orbit
Hera
The European follow-up mission to NASA's DART spacecraft
Pegasus 1 to 3
The only non-Apollo spacecraft launched from a Saturn rocket
Proton 1 to 4
Heaviest scientific satellites ever launched into space
Upper Atmosphere Research Satellite
A NASA Earth observations satellite deployed from STS-48 (Discovery)
