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Dyson Spheres, The Ultimate Alien Megastructures, Are Missing From The Galaxy
Fortune ^ | May 3, 2018 | Ethan Siegel

Posted on 05/04/2018 5:48:07 AM PDT by C19fan

Perhaps the greatest 'holy grail' in all of astronomy is the search for life, and particularly intelligent life, beyond Earth. Given that life arose so plentifully and easily here on our home planet, and that the ingredients for life are everywhere we look throughout the Universe, it seems like a foregone conclusion that we wouldn't be alone. The Milky Way, all on its own, has approximately 400 billion stars, each with its own unique history and chances for life to have arisen. Despite how technologically advanced humans have become, SETI searches have all come up empty, perhaps implying that technologically advanced civilizations aren't communicating in ways we would have thought. But an advanced-enough planet might have built a sphere around their Sun — a Dyson sphere — to harness 100% of its energy. Incredibly, we now have the technology to detect them. If, that is, they exist.

(Excerpt) Read more at forbes.com ...


TOPICS: Astronomy; Science
KEYWORDS: aliens; xplanets
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To: C19fan
Dyson Spheres... Are Missing From The Galaxy

It's called "the Sock Theory".......Once it's found, a lot of questions will be answered.

61 posted on 05/04/2018 8:15:36 AM PDT by Hot Tabasco (Mother nature is a serial killer......)
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To: Lazamataz
It's just an academic exercise anyway. Construction would take materials and technology so far beyond what we have.

Assuming you develop it, you have to ask, "with this much energy, material and technology available, why do I even need a star?"

62 posted on 05/04/2018 8:27:08 AM PDT by ZOOKER (Until further notice the /s is implied...)
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To: TheNext; William of Barsoom
Dyson spheres exist

No, they don't. Perhaps you meant to say they *can* exist?

If so, please refer to post #8

63 posted on 05/04/2018 8:31:57 AM PDT by ShadowAce (Linux - The Ultimate Windows Service Pack)
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To: Migraine

By jove, the emperor’s new clothes are stunning!

Indeed!! Almost up to the Obama Standards ...


64 posted on 05/04/2018 8:32:39 AM PDT by PIF (They came for me and mine ... now it is your turn ...)
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To: Mr. K
That would take more than an entire planet’s worth of material.

It would take more material than the Solar System has.

65 posted on 05/04/2018 8:32:57 AM PDT by ShadowAce (Linux - The Ultimate Windows Service Pack)
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To: ctdonath2

What has interested me is that if you look at science fiction before the ‘60’s, they seem to overpredict the mechanical advances we would make, and underpredict advances in electronics and computers.


66 posted on 05/04/2018 8:39:27 AM PDT by kosciusko51
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To: KevinDavis; annie laurie; Knitting A Conundrum; Viking2002; Ernest_at_the_Beach; Mmogamer; ...
Thanks C19fan. Not sure we have means to detect one anyway, but I also don't believe for a second that anyone anywhere who had the technology and time involved would ever try to build one.
 
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67 posted on 05/04/2018 9:13:37 AM PDT by SunkenCiv (Ralph E. Juergens, Stellar Thermonuclear Energy -- A False Trail?)
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To: PIF

Well if we are at that point, I might have to get some really good tin foil on!

As an engineer, I struggle with how you harness gravity for power without consuming power. The Three Laws of Thermodynamics apply everywhere.


68 posted on 05/04/2018 9:22:39 AM PDT by redgolum
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To: C19fan

This story makes the Infinity Wars movie seem like a documentary. What nonsense.


69 posted on 05/04/2018 9:27:06 AM PDT by DungeonMaster (...the light has come into the world, and men loved darkness rather than light...)
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To: redgolum

As an engineer, I struggle with how you harness gravity for power without consuming power

The secret is in the sauce ...


70 posted on 05/04/2018 9:40:59 AM PDT by PIF (They came for me and mine ... now it is your turn ...)
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To: plain talk

One possibility would be building McNeil cylinders, gaining the living space of a Dyson sphere but with far more versatility.
The other is what we’re doing now, increasingly turning inward to fantasy worlds instead of expanding outward.


71 posted on 05/04/2018 10:45:39 AM PDT by tbw2
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To: Born to Conserve
Why make a structure to collect the energy from a star when you can make a star that fits in your pocket? Dyson spheres are interesting, but they are also a silly extrapolation.

Good point. Maybe existed as a 'bridge' between technologies... but not an end product.

72 posted on 05/04/2018 10:48:30 AM PDT by GOPJ ( If you want a picture of the 'Deep State' imagine a boot stamping on a human face- forever. Orwell)
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To: Delta 21

The Black Shield of the Schwarzschild radius?


73 posted on 05/04/2018 11:21:35 AM PDT by Ozark Tom
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To: camle

Star Lifting as an alternative?


74 posted on 05/04/2018 11:23:19 AM PDT by Ozark Tom
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To: C19fan

By chance alone it was impossible for life to have developed on Earth. There is no chance it could have happened anywhere else without a creator the odds are so against it that science had to create the concept of a Multiverse to explain how life could possibly exist on Earth. That’s why we don’t find no alien signals there’s nothing out there.


75 posted on 05/04/2018 11:28:42 AM PDT by DouglasKC
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To: C19fan
"The reason there is no evidence of Dyson Spheres is because the planet killing doomsday machine from Star Trek TOS episode 35 destroyed them all."

Also, some technologically-advanced civilizations have probably stolen and applied our stealth technology to their Dyson spheres...

76 posted on 05/04/2018 11:38:43 AM PDT by SuperLuminal (Where is another agitator for republicanism like Sam Adams when we need him?)
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To: William of Barsoom

A Dyson sphere would require the resources of several solar system at least, given the star to planet size ratio.


77 posted on 05/04/2018 12:05:11 PM PDT by Mr. Blond
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To: C19fan
There is one that was found by these guys.
ping
ping
ping
78 posted on 05/04/2018 2:51:38 PM PDT by minnesota_bound
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