September 8, 2014 - Look, Ma—No Tethers!
Look, Ma—No Tethers! Launched twenty years ago this week, the STS-64 mission saw the return of the untethered spacewalk. A decade earlier, during the STS-41B shuttle mission, astronauts tested the Manned Maneuvering Unit. Although dozens of traditional spacewalks had been conducted since then, STS-64 astronaut Mark Lee became the first spacewalker in ten years to venture out into space completely untethered. He tested the new SAFER backpack (Simplified Aid For EVA Rescue), designed for use in the event a crew member becomes untethered while conducting a spacewalk. Also visible in Discovery’s cargo bay is the LITE (Lidar-In-Space Technology Experiment) payload, which employed an optical radar using laser pulses instead of radio waves to study Earth’s atmosphere.
Image credit: NASA
September 8-14, 2014
Holidays - Sky Events - Space History
Full Moon 9:38 PM ET
Moon at perigee
Neptune 5° south of Moon
Uranus 1.1° south of Moon