STS-41B was the tenth flight of the International Space Shuttle program, and the maiden flight of Space Shuttle Discovery. It launched on Febuary 28, 1984, on a unique science mission using the brand new SpaceLab module. It also deployed an ion-powered communications satellite.
STS-129, National Aeronautics and Space Administration Wiki
STS-41 - Wikipedia
Kerbal, KSP Space Missions Wiki
Odyssey, KSP Space Missions Wiki
STS-41 - NASA
STS-41B Fact Sheet
STS-41B - NASA
pTrevTrevs's Content - Page 2 - Kerbal Space Program Forums
Spaceflight mission report: STS-41B
STS-41B - NASA
PPT - American Human Spaceflight PowerPoint Presentation, free
STS-41C KSP Space Missions Wiki Fandom, 44% OFF
File:STS-41 launch.jpg - Wikipedia
Kerbal, KSP Space Missions Wiki