Satellites hampering radio astronomy — Science News, October 5, 1974
In the past, the satellites and probes launched by NASA and others successfully avoided conflict with the radio frequency bands reserved for radio astronomy. But now there is trouble.
The trespassers are two major U.S. satellites launched in May…. When either of the satellites is on or near the line between an observer and what he wants to study, the work is rendered difficult or impossible… radio astronomers may be able to live with one or two such interlopers. Twenty or a hundred would be a catastrophe for radio astronomy.
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