Questions tagged [megastructure]

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23
votes
9answers
10k views

If someone built a vacuum tunnel through the atmosphere, could you have an orbit with a sea level perigee?

This is something I've been thinking about for a while now. My initial estimates for the structure were based on people's estimates for an O'Neil cylinder, but assuming you can make the structure a ...
-5
votes
1answer
380 views

Why are scientists considering the ETI explanation for Tabby's star?

When Yale astronomer Tabetha Boyajian located star KIC 8462852 ("Tabby’s star"), some U.S. scientists proposed artificial megastructure(s), such as a Dyson sphere/swarm, instead of discussing more ...
0
votes
1answer
77 views

Can an Earth like planet support life by building a Dyson Sphere across a White Dwarf? [closed]

(Hypothetical Concept) But is it possible to depend on a white dwarf as our power source? Provided we harness its 99% of energy? Can life be sustained?(If it is possible we can easily colonize an ...
3
votes
1answer
188 views

Space Mega-structure Feasability

I was reading a lot about the hypothetical orbital mega-structures that could potentially exist in the future if technology and manpower advances enough. A few of the more notable ones are the ...
22
votes
2answers
2k views

Is it possible to build a Dyson sphere or its variant in our solar system based on our current technology?

Dyson sphere, a concept coined by the physicist Freeman Dyson, is a solar megastructure built around our Sun to harvests most of the radiated energy from it. While this sounds impossible for now, ...