Astronomers warn: The world’s largest communications satellite is threatened by a photo bombing

The world’s largest communications satellite, BlueWalker 3, is so bright that it leaves strong white streaks in time-lapse images of the cosmos. (Image credit: CLEOsat/Ckoirama Observatory/IAU CPS. E. Unda-Sanzana)

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Scientists warn that a giant new communications satellite, eclipsing nearly all the stars in the night sky, is blocking telescopes’ views of the universe.

The massive orbiting “cell phone tower” known as BlueWalker 3 creates interference, both visible and invisible, that “could severely hinder progress in our understanding of the cosmos”. International Astronomical Union (opens in new tab) (IAU) said in a statement.

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