It is especially big claim because there have been recent searches for Dyson Spheres and none of have been found. I think the Gaia spacecraft covered most of th

It is especially big claim because there have been recent searches for Dyson Spheres and none of have been found. I think the Gaia spacecraft covered most of the visible half of the galaxy. Dyson Spheres would be really obvious, emitting infrared radiation unlike normal stars.