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SKYLAB SCIENTIST-ASTRONAUTS This First Day Cover honoring the Skylab is signed by five astronauts in black and blue ink First Day Cover Signed: "Karl G. Henize", "W. Thornton", "William B. Lenoir", "Donald L. Holmquest" and "Tony England".

Sale Price $252.00

Reg. $280.00

Condition: fine condition
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This First Day Cover honoring the Skylab is signed by five astronauts in black and blue ink

First Day Cover Signed: "Karl G. Henize", "W. Thornton", "William B. Lenoir", "Donald L. Holmquest" and "Tony England". 6½x3½. First Day Cover saluting U.S. space achievements bearing 10-cent Skylab stamp postmarked Houston, Texas, May 14, 1974. FIRST DAY OF ISSUE. All six scientist-astronauts were selected on August 4, 1967. KARL GORDON HENIZE(1926-1993) was one of seven astronauts aboard the Challenger STS-51F space shuttle which carried Spacelab 2 and its scientific experiments into space (1985). A noted astronomer, Henize discovered over 2,000 stars in the southern hemisphere (they are marked with "HE" in star catalogs) and was renowned for his photograph of the Large Magellanic Cloud (MGC). In 1993, while climbing Mount Everest on a scientific expedition, Henize died of respiratory and heart failure and was buried at 22,000 feet. WILLIAM EDGAR THORNTON (1929-2021) is a former American astronaut. He completed training as a United States Air Force flight surgeon in 1964 before NASA selected him as a science astronaut in 1967. He's been mission specialist on two space shuttle missions: STS-8 in 1983 and STS-51B in 1985. But his greatest contributions may come from his work on the ground. He studied muscle loss and mass in space flight, an important discovery in the development of long-duration space flights, and has since developed equipment and procedures to combat this. He retired from NASA in 1994 and is currently a Clinical Assistant Professor in the Department of Medicine at the University of Texas Medical Branch in Galveston, Texas and an adjunct professor at the University of Houston-Clear Lake. WILLIAM BENJAMIN LENOIR (1939-2010), earned three degrees from MIT in electrical engineering, including a Ph.D. (1965), and later taught at his alma mater. In 1967, Lenoir qualified as a NASA scientist-astronaut, serving as backup science-pilot for the Skylab 3 and 4 missions, and went into space as a mission specialist on the first operational space shuttle flight (STS-5, the aboard Columbia, deploying commercial satellites). Thereafter he divided his time between scientific and administrative duties at NASA and work in the private aerospace industry. Lenoir, who orbited the earth 81 times on Columbia and logged over 3,000 hours as a jet pilot, died of injuries sustained in a bicycle accident. ANTHONY WAYNE ENGLAND (b. 1942) is a former NASA astronaut who was selected in 1967 as part of a group of astronauts who served as backups during the Apollo and Skylab programs. Like most others in his class, he flew during the Space Shuttle program, serving as a mission specialist on STS-51F in 1985. England has logged more than 3,000 hours of flying time and 188 hours in space.He helped develop and use radars to probe the Moon on Apollo 17 and glaciers in Washington and Alaska, and participated in and led field parties during two seasons in Antarctica. Anthony England is currently dean of the College of Engineering and Computer Science at the University of Michigan's Dearborn campus. Although he never flew in space, DONALD LEE HOLMQUEST (b. 1939), was selected as a scientist-astronaut by NASA in 1967 and worked on habitability systems and medical experiments for Skylab, the United States' first space station, for 1½ years. He resigned from NASA in 1973 and was active in the field of nuclear medicine and helped found Texas A&M University's College of Medicine. He currently practices both medicine and law. Fine condition. 

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