Aug 11 1998
From The Space Library
Hughes Electronics Corporation concluded its investigation into the 19 May failure of PanAmSat's Galaxy IV satellite and the similar problems that later had affected two other satellites. Metallic crystals growing in space, "less than the width of a human hair," had caused tin-plated electrical switches to short, disabling navigational devices that kept the satellites oriented toward Earth-based controllers. However, the investigation had failed to uncover the source of the failure of Galaxy IV's backup system, which led to the widespread blackout on 19 May.
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