STS-61-G was a NASA Space Shuttle mission planned to launch on 20 May 1986, using Atlantis. The main objective of this mission was to launch the Galileo spacecraft toward Jupiter using the Centaur-G u
David M. Walker, Ronald J. Grabe, Norman E. Thagard, James D. A. "OX" van HoftenSpace Shuttle program← STS-51-L (25)STS-26 → Cancelled Shuttle missions← STS-61-FSTS-61-H →
STS-61-F was a NASA Space Shuttle mission planned to launch on 15 May 1986 using Challenger. It was canceled after Challenger was destroyed earlier that year.
John M. Lounge, Roy D. Bridges Jr., Frederick H. Hauck, David C. HilmersSpace Shuttle program← STS-51-L (25)STS-26 → Cancelled Shuttle missions← STS-61-ESTS-61-G →