Who assembled the phonograph records that were included aboard both Voyager spacecraft launched in 1977?
Carl Sagan Carl Edward Sagan ( ; November 9, 1934 – December 20, 1996) was an American astronomer, cosmologist, astrophysicist, astrobiologist, author, science popularizer, and science communicator in astronomy and other natural sciences. He is best known for his work as a science popularizer and communicator. His best known scientific contribution is research on extraterrestrial life, including experimental demonstration of the production of amino acids from basic chemicals by radiation. Sagan assembled the first physical messages sent into space: the Pioneer plaque and the Voyager Golden Record, universal messages that could potentially be understood by any extraterrestrial intelligence that might find them. Sagan argued the now accepted hypothesis that the high surface temperatures of Venus can be attributed to and calculated using the greenhouse effect.
Schwann catalog The "Schwann Catalog" (previously "Schwann Long Playing Record Catalog" or later "Schwann Record And Tape Guide") was a catalog of recordings started by William Schwann in 1949. The first edition was hand-typed and 26 pages long, and it listed 674 long-playing records (see LP record). By the late 1970s, over 150,000 record albums had been listed in Schwann. The company was honored by the record industry both at the 25th anniversary (1974) and 35th anniversary (1984).