Hypothetical Object
Dyson Sphere
A megastructure capturing all of a star's energy.
A speculative megastructure that an advanced civilisation might build to enclose a star and harness its full energy output.
Overview
A speculative megastructure that an advanced civilisation might build to enclose a star and harness its full energy output.
See also
Black Dwarf
A theoretical cold white-dwarf remnant.
Blue Dwarf
A predicted future fate for some red dwarfs.
Gravastar
A black-hole alternative made of exotic vacuum.
Quark Star
A neutron star compressed into quark matter.
Strange Star
A star made of strange quark matter.
Boson Star
A self-gravitating cloud of bosonic particles.