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 ...

A large satellite launching to space tomorrow could become brighter than any other object in the night sky except the moon, raising concerns about its impact on astronomy. The BlueWalker 3 ...

Simulations suggest that satellite “mega-constellations” will be visible to the naked eye all night long in some locations.