Dyson sphere noun2 •A hypothetical system of orbiting solar power satellites meant to completely encompass a star and capture its entire energy output.To the public, he’s more famous for giving science fiction the “Dyson Sphere,” a hypothetical structure a future civilization could build to harness the entire power of its sun. — 2020 •A solid shell of matter enclosing a star.Aye, an actual Dyson sphere. Can you imagine the engineering skills needed to even design such a structure? — 1992 formsDyson spheres
