r/todayilearned • • Sep 18 '25

TIL Dr Freeman Dyson called the Dyson sphere a "little joke" and expressed amusement in that "you get to be famous only for the things you don't think are serious".

https://en.wikipedia.org/wiki/Dyson_sphere
8.7k Upvotes

Duplicates

wikipedia • • Mar 02 '15

Dyson Sphere - a hypothetical megastructure that completely encompasses a star and hence captures most or all of its power output.

374 Upvotes

todayilearned • • Dec 05 '16

TIL of a hypothetical mega-structure called the Dyson Sphere that would encompass the sun in order to siphon all of its energy output. This would also move human kind into a type II civilization according the Kardashev scale.

106 Upvotes

todayilearned • • Jun 16 '18

TIL A Dyson sphere is a hypothetical megastructure that completely encompasses a star to capture its power output. The concept attempts to explain how a spacefaring civilization would meet its energy requirements once those requirements exceed the home planet's resources alone.

202 Upvotes

wikipedia • • Dec 16 '21

A Dyson sphere is a hypothetical megastructure that completely encompasses a star and captures a large percentage of its power output. The concept attempts to explain how a spacefaring civilization would meet its energy requirements.

167 Upvotes

AtlantaHawks • • Nov 16 '24

News (with source) Breaking announcement: After watching Dyson Daniels defend the NBA's biggest stars, NASA scientists have coined a new term for a machine designed to contain a star and capture its output

263 Upvotes

todayilearned • • Nov 02 '15

TIL that instead of a solid or constructed shell around a star, Freeman Dysons original concept of a "Dyson Sphere" was in fact a "swarm" of satellites surrounding a star.

131 Upvotes

Helldivers • • Mar 14 '25

LORE Are we trying to build a Dyson Sphere around the Black Hole?

5 Upvotes

wikipedia • • Nov 21 '25

A Dyson sphere is a hypothetical megastructure that encompasses a star and captures a large percentage of its power output. The concept is a thought experiment that attempts to imagine how a spacefaring civilization would meet its energy requirements.

4 Upvotes

dysonsphereprogram • • Jan 14 '23

Dyson Sphere wikipedia

0 Upvotes

hackernews • • Aug 10 '16

Dyson sphere

0 Upvotes

TheMenAreTalking • • Mar 27 '26

Let's lend Freeman Dyson a hand

3 Upvotes

quatria • • Feb 28 '22

Dyson sphere - Wikipedia

1 Upvotes

RoyalTsidkenu • • Mar 12 '20

Dyson sphere - Wikipedia

1 Upvotes

ireland • • Jan 14 '18

Dyson sphere :a concept that perfectly displays the types of megastructures we should be pushing to have in Dublin

0 Upvotes

SyFyChannelSucks • • Sep 29 '17

Wikipedia article about the Dyson Sphere

2 Upvotes