Rank 97 documents STS-41B — Challenger's February 1984 mission that delivered the photograph every space enthusiast knows: Bruce McCandless II flying the Manned Maneuvering Unit untethered, 98 metres from the orbiter, with Earth filling the frame below. Vance Brand commanded; Robert Gibson, McCandless, and Robert Stewart conducted MMU flights that proved the nitrogen-thruster backpack for satellite retrieval work while Challenger also deployed Westar VI and Palapa B2 and became the first shuttle to land at Kennedy Space Center's Shuttle Landing Facility. Wallimilist renders the white EMU suit, MMU thruster quads, Earth cloud patterns, and distant Challenger exactly as the master PNG dictates.