Unidentified Photographer Two photographs depicting the launch of the first successful American unmanned orbital flight, Mercury-Atlas 4, September 13, 1961, and the chimp Enos prior to his successful orbital flight, Mercury-Atlas 5, November 29, 1961. The first numbered 'NASA S-61-3570' in black on the recto u.r. margin, NASA HQ and Patrick AFB captions on the verso. Vintage gelatin silver prints, image sizes to 9 1/2 x 7 1/2 in. (24.0 x 18.9 cm), unmatted. Condition: Handling crimps and wear to corners of sheet in the second print. N.B. The Mercury-Atlas 4 mission successfully achieved all its flight objectives, demonstrating the ability of the Atlas rocket to lift the Mercury capsule into orbit and of the capsule and its systems to operate completely autonomously (https://nssdc.gsfc.nasa.gov/nmc/spacecraftDisplay.do?id=1961-025A). Nonetheless, to be on the safe side and test out a few more design changes, NASA still planned for one more unmanned test, Mercury-Atlas 5 with the chimp Enos on board, before committing the Mercury-Atlas combo to a manned flight. The spacecraft and Enos survived the mission in good condition, qualifying the Mercury spacecraft to carry a human into orbit.
Unidentified Photographer Two photographs depicting the launch of the first successful American unmanned orbital flight, Mercury-Atlas 4, September 13, 1961, and the chimp Enos prior to his successful orbital flight, Mercury-Atlas 5, November 29, 1961. The first numbered 'NASA S-61-3570' in black on the recto u.r. margin, NASA HQ and Patrick AFB captions on the verso. Vintage gelatin silver prints, image sizes to 9 1/2 x 7 1/2 in. (24.0 x 18.9 cm), unmatted. Condition: Handling crimps and wear to corners of sheet in the second print. N.B. The Mercury-Atlas 4 mission successfully achieved all its flight objectives, demonstrating the ability of the Atlas rocket to lift the Mercury capsule into orbit and of the capsule and its systems to operate completely autonomously (https://nssdc.gsfc.nasa.gov/nmc/spacecraftDisplay.do?id=1961-025A). Nonetheless, to be on the safe side and test out a few more design changes, NASA still planned for one more unmanned test, Mercury-Atlas 5 with the chimp Enos on board, before committing the Mercury-Atlas combo to a manned flight. The spacecraft and Enos survived the mission in good condition, qualifying the Mercury spacecraft to carry a human into orbit.
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.jpg "Source: Christie's")
.jpg "Source: Christie's")
