European Space Agency (ESA) officials say they are still investigating the cause of a drop in power that occurred in May on one of the four in-orbit validation (IOV) spacecraft for Europe’s Galileo navigation, position and timing satellite system. The agency has shut down the spacecraft and reduced power on all four IOV satellites as a precautionary measure while it determines the root cause of the anomaly. Javier Benedicto, ESA’s Galileo program manager, says investigators ...


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