Scientists focused on detecting partially completed Dyson spheres emitting excess infrared radiation, although they acknowledge the possibility of false positives from natural celestial objects ...
More information: Shant Baghram, In Search of Extraterrestrial Artificial Intelligence Through Dyson Sphere–like Structures around Primordial Black Holes, The Astrophysical Journal (2025).
Could We Really Build a Dyson Sphere? Kayali and his team acknowledge these past infrared studies, and suggest that other techniques could be used instead to detect distant Dyson rings around pulsars.
Though this is by far the concept which has gotten him the most fame, with one Star Trek: The Next Generation episode featuring a Dyson sphere that enveloped an entire star, it’s perhaps rather ...