A prototype satellite has become one of the brightest objects in the night sky, and it may soon be accompanied by dozens more. An observation campaign tracking the BlueWalker 3 satellite, launched in September 2022 by AST SpaceMobile, found that it is at times brighter than all but a handful of stars and planets that can be seen from Earth. The findings published in the journal Nature highlight a fast-escalating concern among astronomers, who have warned that the influx of private space ventures in low-Earth orbit could alter our view of the night sky and interfere with research.
Researchers with the International Astronomical Union’s Center for the Protection of the Dark and Quiet Sky from Satellite Constellation Interference (CPS) observed BlueWalker 3 over the course of 130 days. BlueWalker 3’s antenna array measures just shy of 700 square feet, making it the largest yet for a commercial satellite in low-Earth orbit. That huge array reflects sunlight and after it unfurled,…
2023-10-02 16:27:06
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