A new paper explores the concept of a Dyson swarm, a megastructure made of solar collecting satellites surrounding a star.
The paper concludes that a complete Dyson swarm outside the orbit of Earth would raise our temperature by 140 K, making Earth uninhabitable.
A compromise suggested a partial Dyson swarm placed at 2.13 AU from the Sun, harvesting 4% of solar energy while increasing Earth's temperature by less than 3K.
The construction of a Dyson swarm would require a massive amount of silicon, about 1.3×10²³ kg.