Is it possible to build a Dyson Sphere?

But if any part of the sphere were nudged closer to the star—say, by a meteor strike—then that part would be pulled preferentially toward the star, creating instability. That's too bad. read more

If it could be stabilized, a Dyson Sphere built at 93 million miles from the sun, the same distance as the Earth, would contain about 600 million times the surface area of our planet in its interior. However, comparatively little of the surface would be habitable on account of a lack of gravity. read more

Yes. Absolutely. In fact, it’s easier than people think. But first, it has to be said that the common concept of this usually seen in science fiction is just absurd. read more

Although such megastructures may be theoretically possible, all plans to build a fixed-in-place Dyson sphere are currently far beyond humanity's engineering capacity. The number of craft required to obtain, transmit, and maintain a complete Dyson sphere far exceeds present-day industrial capabilities. read more