Giant satellite outshines stars, sparking fresh concerns for astronomersThousands of commercial satellites already litter low-Earth orbit. The 64-square-meter BlueWalker 3 is the largest one yet, considerably brighter than any of the Starlink satellites deployed by SpaceX, says astronomer John Barentine of Dark Sky Consulting. On top of the light pollution, BlueWalker 3 is testing a transmission technology that threatens to trespass into the frequencies used by radio observatories on Earth, he says. “This just fundamentally feels different,” he says. “We’re in new territory here.”
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