STS-61 mission specialist F. Story Musgrave is photographed during an EVA to install two small magnetometers to the top of the Hubble Space Telescope (HST). Views include: Musgrave with hardware and part of the Remote Manipulator System (RMS) arms in view (001-7). View of the old magnetometers (008-10). Musgrave (on RMS arm) and Mission specialist Jeff Hoffman (with hardware and camera) prepare to be lifted to the top of the HST to replace the magnetometers (011-3). Musgrave and Hoffman are photographed at the top of the HST replacing the magnetometers (014-28). View of new solar arrays deployed on HST (029-37). Views 034-7 are overexposed.