STS-41B - NASA
On this mission the first untethered space walks were carried out by McCandless and Stewart, using the manned maneuvering unit.
30 años del primer paseo espacial sin cables - Eureka
Space Shuttle Missions (1-50)
Wonders All Around – Bruce McCandless III
STS-41B - NASA
Space Shuttle Challenger - Sts - 41B Crew - Inscribed Printed Photograph Signed In Ink With Co-Signers
APOD - Astronomy Picture of the Day [Arhiv] - Stran 3 - Astronomija in astrofotografija
STS-41B - NASA
Sts-116 nasa embroidered patch - Gem
Confessions of an Independent Publisher (who learns everything the hard way)