Have We Really Detected Dyson Spheres? The Real Story 

That's the plan!

Just what this channel needs more science fiction, instead of more science.

😆 maybe the ufos are just naturally blurry like bigfoot and nessy. JK

Sounds great! Please send us the link so that we can share it out to our audience as well.

I had a similar thought... or perhaps they know how physics works better than us and don't even need fusion reactors.

That's why the stars in the papers are candidates instead of hits. Also part of the scope of SETI activities is discovering and modelling previously unknown natural phenomena, If you look at many previous videos, you will see that what you say is more or less the working attitude of scientists in the area, starting from the prior "this is extremely unlikely to be aliens" and working down from known mechanisms.

We agree, and as mentioned in the video, further experiments are necessary. One of the simplest approaches would be to obtain spectra using the JWST or other IR-optimized telescopes.

You are correct, lasers do indeed happen in nature but they are rarely stable over a long period of time. It will probably the topic of video in the future. Thank you!

At any reasonable distance from a star it's always going to be easier to throw up a solar array to capture the energy from the giant fusion reactor that's already there than to build you're own. Keep doing that for long enough, and you're going to block a significant portion of its radiation. in it's original conception, hat's all a Dyson's sphere is.

If you're living on a planet, maybe. But if you're living in a billion space habitats made by mining asteroids into engineering materials ... who needs a planet? You're going to need a LOT of materials for your Dyson sphere, so why not cut up your planet? (Obviously, a majority of the voting population would need to live in space, or not on the planet. But if it's a 1-man, 1 vote system, that's not a problem.)

The energy to build would also be coming from the host star.

@@kyus1974 But where do the raw resources come from the actual building material? You could mine every planet in the solar system and still not have enough, you could capture every meteorite and still not have enough do you even realize the size of a star, and what about the gravitational effect there are so many things wrong with this idea it becomes science fiction. Suited for a comic book but not real science.

@@voodoojedizin4353 Someone crunched the numbers and showed that you "just" need to deconstruct Mercury to make a dyson sphere around the sun. Which is *physically* possible but probably not practical for humans for at least a thousand years.

We may not have yet listen to those stars in radio. There are 400 billion stars in our galaxy and we listened to less than 100 million so far.

Why would civilizations millions of years ahead of us be using radio lol? Seti is a joke.

What if 'they' are not millions of years ahead of 'us'? We have some wild technology that has not even been publicly released and never will. Your mind would be blown, at least mine is. IMO even advanced aliens would be spooked at our tech compared to our primtive nature.

If you atomised Venus, you'd get a Dyson sphere with a wall thickness of a few millimetres - it's actually difficult to calculate without an arbitrary-precision calculator. So ... I got an arbitrary calculator, and learned how to use it. Your "Venus_as_Dyson_Sphere" sphere would be a shell, in approximately Earth's orbit, and 0.00000330150 km thick . Since the original data I used only had 4 significant figures, I've discarded 40 "insignificant" digits from the output. Source code available. In "freedom units" (freedom from the Imperial dictats of an unelected foreign power ; not freedom form sanity), that's a 3 mm thick shell. OK, 3.3 mm. Your "Venusian Dyson sphere would have a structural integrity (and radiation protection) on a par with my stronger toenail clippings. I suppose I'd better re-do the calculations for the other *measured* planets. It's not that complex when you work out the method. Always putting the resultant Dyson sphere in the Earth's orbit, and working purely from the volumes ; converting the matter involved into appropriate elements is left, as the saying goes, as an exercise for the reader. Calculations re-done. Jupiter could get up to a interesting wall-thickness of a few metres. At about Earth's orbit. The problems of bulk transmutation remain in your court. YT doesn't have an option for monospaced fonts, do they? The table is neatly aligned in monospace. Assigning values for other planets and the Earth's moon. Name Mercury Earth Moon Mars Jupiter Saturn Uranus Neptune R (km) 2439.5 6371.0 1737.1 3396.0 71492.0 60268.0 25559.0 24764.0 Dyson shell (km) Mercury : .00000021623103424157 Dyson shell (km) Earth : .00000385157512741951 Dyson shell (km) Moon : .00000007807104977223 Dyson shell (km) Mars : .00000058333576310447 Dyson shell (km) Jupiter : .00544236792380366022 Dyson shell (km) Saturn : .00326043763127107444 Dyson shell (km) Uranus : .00024868359225174970 Dyson shell (km) Neptune : .00022619236644967332

@@a.karley4672 The Earth does not need to be within the sphere for the theoretical technology to work.

Your brain is definitely one sided

If we listened to closed-minded naysayers, like yourself, we would never have invented airplanes, cars, telephones, satellites, etc. We may not have even come out of our caves if we had listened to that kind of negativity. Ignore that person's comment and keeping searching and learning!

@@juliat4908 get help

@@juliat4908 it was mainly to the fact saying they can’t be built we honestly do not know that answer and may never know

Douglas Adams answered this decades ago, in his style. The answer is "teasers". Alternatively, the small, furry, Alpha Centaurian equivalents of ham-radio enthusiasts and anthropologists.

That onerous mission has been assigned to the Screen Writers Guild.

😂

Hello statistics, there is moderate adavanced ( so far ) civilization on planet called Earth, not because its very special, but because there are plenty of earth-like planet in the Universe ;)

Just a theory but maybe they have uses for Dyson spheres we haven’t thought of yet. My theory is they might be used to transfer power from one star to another.

@@user-sf3dw2sm3b ... which would mean an abnormal luminosity for the recipient star (the donor possibly becoming too dim to measure). Which would stick out like an excessively luminous star for it's other spectral characteristics, and be red-flagged in any of our more recent, higher precision all-sky surveys. Of course, there is a whole zoo of potential candidate causes for such deviation from normality. Thorne-Ẑytkow objects were just one such theoretical object that has recently had a possible real-life example discovered. What would be the benefit of transferring power, which you couldn't achieve more easily by just going to the "donor" star to do whatever you wanted the power for?

The chance of keeping a credible discovery quiet for the nominal "few days" of checking is pretty slender. Someone would either blab, or notice that everyone else was being stonily silent for no obvious reason. Remember how the story of the "life on Martian meteorite ALH84001" broke? Some politician was poking his mid-week prostitute and blabbed to her. Or was it "him"? Whatever ; unimportant. The news would leak.

Ever heard of space mining?

​@@apngeram ever heard of not extrapolating nonsense concepts of a toddler civilization onto ones millions of years ahead of us. Dyson spheres would be childish and inefficient to them.

@@jaz4742 I didn’t say the Dyson spheres would be or would not be efficient to a highly advanced civilization. I just pointed out that space mining is just a potential way to gather resources.

@@jaz4742 How would you know whether or not a potential civilization wouldn’t need to harness the power of a star? Do you really know so much about science and futurism so could speculate from a higher level of authority, especially when many well respected physicists and astronomers are speculating on this very idea?

@colonelleblanc2594 because i dont fall for the trap of thinking that we, the toddlers who just got started, know what civilizations millions of years ahad of us are doing or have discovered in terms of energy. Empty space has more energy than stars. And even that would be childish for them. Dyson Spheres are an ancient silly idea. Like cavemen thinking they cant cross an ocean because nobody could swim it. Without knowing about boats or planes.

We are scientists and proudly stand by our work without hiding our identity. Unlike you, we focus on constructive dialogue and respect others' efforts. This channel welcomes constructive contributions, not trolls. Goodbye.

@@AllPlanets I hate to pop your bubble but I'm not the only one that thinks this way, listening for extraterrestrial radio signals is one thing. But this and some of your other shows fall into the category of the {history channel} kind of show, along with ancient alien technology and alien abductions. I know of many people who followed your work, who then turned away when you started getting into science fiction instead of science fact.

Infinite possibilities exist and are happening at every moment

@@alleneatsfruit No, the Vulcan saying is "Infinite diversity in infinite combinations." 🖖

Prove it.

Looking forward to reading your Phd thesis on this topic.