Astronomers warn proposed space mirrors would create severe light pollution, outshining the full moon
A study finds that each sun-reflecting mirror planned by startup Reflect Orbital would appear 40 times brighter than the full moon to observers in its beam, erasing all stars from view. The company has received FCC approval for a demonstration satellite with a 60-foot mirror, and plans to launch thousands more. Princeton astrophysicist Gaspar Bakos says the effect would be worse than city lights like London's.
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Original headline: “Massive space mirrors could be 40 times brighter than the full moon, astronomers warn. 'It will be worse than big cities like London'.” Browse more stories.