John Glenn was not popular with the other astronauts. Glenn was the backup pilot for Shepard and Grissom on the first two manned Project Mercury flights, the sub-orbital missions Mercury-Redstone 3 and Mercury-Redstone 4. Glenn was selected for Mercury-Atlas 6, NASA's first manned orbital flight, with Carpenter as his backup. Putting a man in orbit would achieve one of Project Mercury's most important goals. Shepard and Grissom had named their spacecraft "Freedom 7" and "Liberty Bell 7". The numeral 7 had originally been the production number of Shepard's spacecraft, but had come to represent the Mercury 7. Glenn named his spacecraft, number
Glenn Gould were making their mark on communications studies.) Anthologies of his writing and letters have been published. Library and Archives Canada retains a significant portion of Gould's work called The Glenn Gould Archive. One of Gould's performances of the Prelude and Fugue in C major from Book II of "The Well-Tempered Clavier" was chosen for inclusion on the NASA Voyager Golden Record by a committee headed by Carl Sagan. The disc of recordings was placed on the spacecraft Voyager 1, which is now approaching interstellar space and is the farthest man-made object from Earth. Gould is a popular subject of biography