These high resolution images of space scenes are matted to perfection on quality card-stock board and feature a description of the image on back. Astronaut Bruce McCandless II, mission specialist, participates in an extravehicular activity a few meters away from the cabin of the shuttle Challenger during the STS-41B mission. He is using a nitrogen-propelled hand-controlled Manned Maneuvering Unit. This was the first time an astronaut performed a spacewalk without being tethered to the shuttle. UPC 700112244001 Image property of NASA. First Non-Tethered Space Walk 3024$3.25 Barcode: No BarcodeBarcode (+.10) All images © Astrolith Graphic Products, inc. and John C. Wittenberg unless otherwise identified.