In 1960, British theoretical physicist Freeman Dyson published a one-page paper in the journal Science that offered perhaps the most hopeful vision ever conceived of humanity’s technological future.

We may receive a commission on purchases made from links. All of our planet's energy — whether it's gained from food, fossil fuels, or renewable sources — ultimately comes from the sun. Solar ...

Researchers found seven stars in our galaxy that might host alien megastructures called Dyson spheres. But these stars' strange behavior could also be explained by other phenomena, like clouds of dust ...

Are there advanced alien “supercivilizations” lurking in our galaxy? If there are, they may use massive megastructures, such as a “Dyson sphere,” to harvest solar energy directly from a star. As first ...