Massive space mirrors could be 40 times brighter than the full moon, astronomers warn. 'It will be worse than big cities like London'

A new study indicates that Reflect Orbital’s planned space mirrors pose a significantly greater threat to astronomical observations than initially projected. The mirrors, designed to reflect sunlight for laser payloads, are estimated to be forty times brighter than the full moon when fully deployed. Researchers predict this intense reflected light could disrupt nighttime photography and potentially damage sensitive scientific instruments. This heightened brightness would create a visual impact comparable to large urban centers such as London. Scientists emphasize the urgent need for mitigation strategies to protect valuable dark-sky sites worldwide.