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Dyson spheres/swarms spotted ?

Scientific discovery and discussion
ursaminortaur
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Dyson spheres/swarms spotted ?

#663928

Postby ursaminortaur » May 11th, 2024, 11:52 pm

It will probably turn out to be something more mundane but two surveys have found infrared signatures which could indicate the presence of Dyson spheres or Dyson swarms.

https://archive.is/2024.05.11-003934/https://www.newscientist.com/article/2430601-dozens-of-stars-show-signs-of-hosting-advanced-alien-civilisations/

Two surveys of millions of stars in our galaxy have revealed mysterious spikes in infrared heat coming from dozens of them. Astronomers say this could be evidence for alien civilisations harnessing energy from their stars by using a vast construction known as a Dyson sphere – although they can’t fully rule out more mundane explanations.
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Each team analysed the same 5 million stars from the combined datasets, and both turned up signs of excess infrared heat that couldn’t be explained by known natural processes. “The most fascinating explanation could be actual Dyson spheres,” says Suazo.
His team spotted strange signals at seven red dwarfs within 900 light-years of Earth. These stars are smaller and dimmer than our sun, but appeared up to 60 times brighter in infrared than expected.

This excess would have been caused by something with a temperature of up to 400°C, consistent with what we might expect for a Dyson sphere. Up to 16 per cent of each star would have to be obscured to account for the signal, meaning it would more likely be a variant of the idea called a Dyson swarm – a collection of large satellites orbiting a star to collect energy – if the cause is truly of artificial origin. “This isn’t like a single solid shell around the star,” says team member Jason Wright at Pennsylvania State University.

Contardo’s results are broader, with 53 candidates found among larger stars, including some sun-like stars, at distances of up to 6500 light years from Earth. “Both sets of candidates are interesting,” she says, though inconclusive. “You need follow-up observations to confirm anything.”


GrahamPlatt
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Re: Dyson spheres/swarms spotted ?

#663979

Postby GrahamPlatt » May 12th, 2024, 1:02 pm

Can’t open the link.

ReformedCharacter
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Re: Dyson spheres/swarms spotted ?

#663981

Postby ReformedCharacter » May 12th, 2024, 1:20 pm

GrahamPlatt wrote:Can’t open the link.

Works consistently for me.

RC

odysseus2000
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Re: Dyson spheres/swarms spotted ?

#668195

Postby odysseus2000 » June 9th, 2024, 11:39 pm

Interestingly since the demonstration of beaming solar power to earth in March of this year:

https://www.caltech.edu/about/news/in-a ... r-in-space

I am seeing much more interest in this from various folk, more European than US. Perhaps the first Dyson components will not be found around other stars but around our own planet.

There are clearly questions over how to send the power down and the size of the receiver consistent with not sending so much power that creatures are burned if they enter the receiver area, but these seem potentially solvable. It would be potentially the greenest and most reliable power ever created by humans.

Regards,

GoSeigen
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Re: Dyson spheres/swarms spotted ?

#668198

Postby GoSeigen » June 10th, 2024, 6:38 am

odysseus2000 wrote:It would be potentially the greenest and most reliable power ever created by humans.


Humans are such fools, it's unbelievable.

GS

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Re: Dyson spheres/swarms spotted ?

#668203

Postby MrFoolish » June 10th, 2024, 7:32 am

GoSeigen wrote:
odysseus2000 wrote:It would be potentially the greenest and most reliable power ever created by humans.


Humans are such fools, it's unbelievable.

GS


What's the point of this comment, especially on a science board? It just comes across as totally vague and passive aggressive. Please make your point properly or don't bother.

Bubblesofearth
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Re: Dyson spheres/swarms spotted ?

#668384

Postby Bubblesofearth » June 11th, 2024, 9:02 am

MrFoolish wrote:
What's the point of this comment, especially on a science board? It just comes across as totally vague and passive aggressive. Please make your point properly or don't bother.


Sometimes posters think they know more than they do. There was a recent thread about sand batteries where certain individuals piled in early with criticisms only to be found not to actually understand the what the main function of a battery was.

Also, if you are sufficiently vague then you can't be wrong. Politicians, for example, have mastered this.

BoE


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