Harnessing Energy: What Would Alien Engineering Look Like?

  • Context: Graduate 
  • Thread starter Thread starter ABHoT
  • Start date Start date
  • Tags Tags
    Energy
Click For Summary

Discussion Overview

The discussion explores the hypothetical implications of alien engineering on celestial bodies, particularly in the context of energy harnessing. Participants consider what evidence might indicate that extraterrestrial civilizations have manipulated stellar objects for energy purposes, examining both theoretical and speculative scenarios.

Discussion Character

  • Exploratory, Conceptual clarification, Debate/contested

Main Points Raised

  • One participant suggests that if alien life forms altered the positions of stellar bodies for energy harnessing, it might be difficult for observers to detect such changes after the fact.
  • Another participant mentions that while gravitational assists could change the orbits or rotations of objects, these alterations might not be distinguishable from natural variations.
  • A theoretical concept of a Dyson sphere is introduced, with the idea that while its effects on a star's gravity could be observed, the light it captures would not be visible, complicating detection.
  • Reference is made to a concept from "A Brief History of Time" regarding towing a white dwarf, suggesting that if humans can conceive of such ideas, a more advanced alien civilization might be capable of implementing them.
  • Concerns are raised about the ability to discern whether an observed orbit is a result of manipulation or was the original state, emphasizing the challenge of determining initial conditions.

Areas of Agreement / Disagreement

Participants express differing views on the detectability of alien engineering effects, with some arguing that evidence may be indistinguishable from natural phenomena, while others propose specific scenarios where manipulation could be inferred. The discussion remains unresolved regarding the clarity of evidence for such interventions.

Contextual Notes

Participants acknowledge limitations in their arguments, such as the dependence on initial conditions and the theoretical nature of the technologies discussed. There is an emphasis on the speculative nature of the scenarios presented.

Who May Find This Useful

This discussion may be of interest to those exploring theoretical astrophysics, speculative engineering concepts, and the implications of extraterrestrial intelligence on cosmic structures.

ABHoT
Messages
33
Reaction score
0
If an alien life form had tinkered with the positions of stella bodies of some kind for the purposes of harnessing energy, or for any other reason, what would evidence of that look like to an observer, i.e., us?
 
Astronomy news on Phys.org
We wouldn't be able to tell a difference. Getting energy from gravitational assists for example will alter the rotation or orbit of an astrophysical object; however, I don't believe we could tell after the fact that the orbit/rotation was altered.

There are (theoretical) energy harnessing technologies which we may be able to see the effects of. One of the more fantastical ones is a Dyson sphere which captures all the energy/radiation given out by a star. In this case, we would see the gravity of the star affecting the surrounding area, but we wouldn't be able to see the light. We may infer that this object is not a black hole by looking at the density implied by the orbits of the planets around it. These kinds of things are still quite far away imo haha.
 
In Brief History of Time there is mention of towing a white dwarf using matter as a kind of dangling carrot. I know this is fanciful for us but I'm thinking if a human can imagine it, maybe a more advanced alien race could actually do it.
 
Well, if we see 1 big ball of mass moving in a line "towing" a white dwarf, we may suspect something. But I'm saying you wouldn't be able to tell the difference AFTER the fact. Since you don't know the initial velocity, you can't be sure that the altered orbit wasn't the original orbit in the first place.
 

Similar threads

  • · Replies 20 ·
Replies
20
Views
4K
  • · Replies 4 ·
Replies
4
Views
3K
  • · Replies 14 ·
Replies
14
Views
3K
  • · Replies 7 ·
Replies
7
Views
4K
  • · Replies 17 ·
Replies
17
Views
4K
  • · Replies 13 ·
Replies
13
Views
3K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 19 ·
Replies
19
Views
4K
  • · Replies 21 ·
Replies
21
Views
3K
  • · Replies 17 ·
Replies
17
Views
3K