Hypothetical Object
Matrioshka Brain
A nested Dyson swarm used as a computer.
A hypothetical megastructure of multiple Dyson-sphere shells used as a vast computational platform around a star.
Overview
A hypothetical megastructure of multiple Dyson-sphere shells used as a vast computational platform around a star.
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.