A survey of five million solar systems, aided by algorithms, has discovered 60 stars that appear to be partially covered by gigantic alien power plants called ‘Dyson spheres’A survey of five million solar systems, aided by algorithms, has discovered 60 stars that appear to be partially covered by gigantic alien power plants called ‘Dyson spheres’ A survey of five million solar systems, aided by algorithms, has discovered 60 stars that appear to be partially covered by gigantic alien power plants called ‘Dyson spheres’ Science & tech Articles | Mail Online