Space

8341 readers

1 users here now

Share & discuss informative content on: Astrophysics, Cosmology, Space Exploration, Planetary Science and Astrobiology.

Rules

Be respectful and inclusive.
No harassment, hate speech, or trolling.
Engage in constructive discussions.
Share relevant content.
Follow guidelines and moderators' instructions.
Use appropriate language and tone.
Report violations.
Foster a continuous learning environment.

Picture of the Day

The Busy Center of the Lagoon Nebula

Related Communities

🔭 Science

🚀 Engineering

🌌 Art and Photography

Other Cool Links

founded 2 years ago

MODERATORS

[email protected]

217

Astronomers are on the Hunt for Dyson Spheres (www.universetoday.com)

submitted 7 months ago by [email protected] to c/[email protected]

94 comments fedilink hide all child comments

you are viewing a single comment's thread
view the rest of the comments

[–] [email protected] 1 points 7 months ago* (last edited 7 months ago) (2 children)

They must be mining a lot of bitcoin to need 99.9% of a star’s energy.

Or else to power one of those Kurtzgestat space lasers that will melt us anyway.

[–] [email protected] 1 points 7 months ago

Maybe they are just fabricating matter. That takes a surprising amount of energy!

[–] [email protected] 1 points 7 months ago* (last edited 7 months ago) (1 children)

Even if that level of efficiency were possible, 0.01% of a star's output is still a substantial amount of heat. You would still have to radiate it away otherwise it would melt your mega structure, and you would have to radiate it out equally in all directions otherwise you'd knock it off its orbit with the thrust generated from the radiating of the heat on one side.

[–] [email protected] 1 points 7 months ago

Yeah, it’s interesting to think about IR powered thrust.

I wonder if moving a star by cooling one side could ever happen? Like in a some weird future tech way obviously.