The Infra-Red Calibration Balloon (S73-7) satellite had gone off the grid from radar not once but twice — once in the 1970s and then again in the 1990s. After 25 …read more
Source:: Live Science
The Infra-Red Calibration Balloon (S73-7) satellite had gone off the grid from radar not once but twice — once in the 1970s and then again in the 1990s. After 25 …read more
Source:: Live Science
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