"40th Anniversary: Remembering the Historic Untethered Spacewalk"
Heart-stopping photos of the first untethered spacewalk, performed by astronaut Bruce McCandless II 40 years ago, mark the anniversary of the daring feat. Using the Manned Maneuvering Unit (MMU), McCandless floated in space without being tethered to the Challenger shuttle, capturing iconic images. Despite concerns about the MMU, the mission proved critical for NASA and showcased the potential for untethered spacewalks, paving the way for future space exploration.