Nov 29 1969
From The Space Library
Apollo 12 astronauts, enclosed in mobile quarantine facility, arrived at Ellington AFB, Tex." where they were greeted by 500 cheering persons, including their families and NASA officials. Mu was moved in motorcade to Lunar Receiving Laboratory, where astronauts would remain until Dec. 10. (DeLone, W Post, 11/30/69, A3)
Conclusion that rings of Saturn were water ice of extraordinarily low temperature was announced by Dr. Gerard P. Kuiper, Director of Univ. of Arizona Lunar and Planetary Laboratory. Researchers had ruled out earlier theory that composition could be ammonia ice by comparing spectra of rings and ices of number of compounds. Team had studied infrared reflection of spectrum of rings with interferometer attached to 61-in NASA telescope at LPL observatory near Tucson. (Univ. of Arizona Release 6911.29 dh)
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