Astronomers sound alarm over light pollution from huge new satellite

At its peak BlueWalker 3, which resembles a Tetris block, is as bright as two of brightest stars in night sky

The night sky is peppered with light from stars, planets and other celestial bodies. But now researchers have revealed one of the brightest objects visible from Earth is a communications satellite resembling a Tetris block.

Scientists say while the apparent brightness of BlueWalker 3 is not constant, its peak is on a par with Procyon and Achernar, two of the brightest stars in the night sky.