A ring or sphere could, apparently, be stable if surrounded by the right sizes and gravities of other stars.

A photovoltaic Dyson sphere is a theoretical megastructure that could provide vast amounts of energy for interstellar space travel and large-scale technological endeavors.

As civilizations become more and more advanced, their power needs also increase. It's likely that an advanced civilization ...

The discovery of a Dyson sphere, built by an alien intelligence, will prove that it is possible to avoid those calamities. A ...

The general idea is that technologically superior alien civilizations might build gigantic structures ... This is because, if ...