Keywords: Robert L. Stewart, hanging above the Earth - DF-SC-84-10569.jpg Robert L Stewart tests the nitrogen propelled hand-controlled manned maneuvering unit MMU as part of an extravehicular activity EVA during Flight 41-B of the space shuttle Challenger The MMU is a device which allows astronauts to move freely in space without a tether <p><p> Note that although the metadata in this file indicates that the astronaut's name is Robert C Stewart this is an error; his name is Robert L Stewart <p>NASA ID S84-27033 National Archive NN33300514 http //www dodmedia osd mil/DVIC_View/Still_Details cfm SDAN DFSC8410569 JPGPath /Assets/Still/1984/Air_Force/DF-SC-84-10569 JPG High Res http //images jsc nasa gov/luceneweb/caption jsp selections STS41B browsepage Go keywords null pageno 4 hitsperpage 25 photoId S84-27033 Low Res 1984-02-07 US Federal Government Air Force/NASA PD-USGov Manned Maneuvering Unit Robert L Stewart STS-41-B EVAs 7 February |