Jan 7 1974
From The Space Library
A 5-million-km hydrogen cloud surrounding Comet Kohoutek was photographed by a Naval Research Laboratory camera aboard a NASA Aerobee 200 sounding rocket. The rocket, launched from White Sands Missile Range, reached an altitude of 193.1 km. The image of the cloud, invisible from the earth because it glowed at an ultraviolet wave-length that did not penetrate the atmosphere, was obtained by photo-graphing the comet in the light of the Lyman-alpha line of atomic hydro-gen using a special electronic uv camera. Scientists believed the comet consisted largely of water ice which evaporated as it neared the sun, breaking up into component hydrogen and oxygen atoms. The lighter hydrogen atoms escaped rapidly, producing the cloud. (Naval Research Reviews, Jan 74, 29)
Communications Satellite Corp., on behalf of itself and other joint owners-including American Telephone & Telegraph Co., ITT World Communications, Inc., RCA Global Communications, Inc., and Western Union International Corp.-announced intention to award a $3.16-million contract to E-Systems Inc. for construction of two 32-m-dia antennas for international satellite communications on the existing earth station sites of Andover, Me., and Etam, W. Va. (ComSatCorp Release 74-2)
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