Apollo-Soyuz signed document, known as the Space Magna Carta; the first official official government document signed in space. In English and Russian dated July 17, 1975.
FIRST INTERNATIONAL SPACE DOCKING CERTIFICATE This is to certify that at 12 hours 09 minutes Washington time and 19 hours 09 minutes Moscow time, on July 17 1975, flight crews of the United States of America and the Soviet Socialist Republic successfully docked their Apollo and Soyuz spacecraft in Earth orbit. They share the hope that this first international manned space flight will stand in the light of history as a significant advance in the ability of their nations to work together in ways that advance the interests of people everywhere.
This official government document was signed by the two entire crews, including Thomas P. Stafford, D. K. Slayton, Vance Brand, Alexey Leonov, and Valerie Kubasov. This document was the start of the cooperation in space between the U.S. and Russian programs, and the beginning of the end of the Cold War and the eventual demise of the old Soviet Union.
A technician prepares to unlatch the door built into the guide vanes of the 16-Foot Transonic Wind Tunnel at NASA Langley Research Center, Hampton, Virginia. 05.01.1990
The tunnel, one of dozens of research facilities at Langley, was built in 1939 and most recently renovated in 1990. Operating transonically or across the speed of sound, the air in the test section travels from about 150 to 1,000 miles per hour. The tunnel is called the “16-Foot” because its test section is approximately 16 feet in diameter.
A technician prepares to unlatch the door built into one of the guide vanes of the 16-Foot Transonic Wind Tunnel at NASA Langley Research Center, Hampton, Virginia. 03.31.1990
The large cone fairing in the photograph helps to reduce disturbances in air flow around corners. In addition, the guide vanes behind the cone, which form an ellipse, cut across each cylindrical tube at a 45 degree angle. Similar sets of vanes at the three other corners of the wind tunnel turn the air uniformly as it rushes through the 1000-foot race-track-like enclosed tube.
Lunar craters and the lunar module Intrepid (Charles Conrad and Alan Bean inside) as seen from the Apollo 12 command module Yankee Clipper, Nov. 19, 1969. Photo: Richard Gordon, command module pilot. Image credit: NASA.