Habitable Worlds Observatory

Seven Stars Looked Like Alien Megastructures. JWST Just Ruled Out Two

Astronomers just proved they can tell a fake alien megastructure from a real one. The bigger story is the fleet of new machines arriving now, from a telescope that films the entire sky to a future observatory built to photograph other Earths, that will turn a slow, careful hunt into an industrial-scale search for a civilization's fingerprints.