Astronauts Akers and Thornton install COSTAR during EVA for HST repair

STS061-94-050 (8 Dec 1993) --- Astronaut Thomas D. Akers maneuvers inside the bay which will house the Corrective Optics Space Telescope Axial Replacement (COSTAR) while assisting astronaut Kathryn C. Thornton with the installation of the 640-pound instrument. Thornton, anchored on the end of the Remote Manipulator System (RMS) arm, is partially visible as she prepares to install the COSTAR, during their extravehicular activity (EVA).