This NASA image depicts the space shuttle Challenger during a 1984 flight. Defense Imagery tells us more about the photo:
An overhead view of the space shuttle Challenger taken by a fixed camera mounted on astronaut Bruce McCandless's helmet during the first extravehicular activity (EVA) using the nitrogen-propelled, hand-controlled, manned maneuvering unit (MMU). The MMU is a device which allows astronauts to move freely in space without a tether.
The “Report of the Presidential Commission on the Space Shuttle Challenger Accident” describes this area of the orbiter in cutaway detail.
Click on the image for a better view.
The photo, depicted in this image, was taken on February 7, 1984. NASA Image 84-HC-77. Online, courtesy U.S. Air and Space Museum at the Smithsonian.