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Science

exboyfil

(18,366 posts)

4. What I find interesting is that no Type III civilizations

Reply to Judi Lynn (Original post)

Wed Oct 10, 2018, 03:40 PM

Oct 2018

have been observed to this point. These would be ones that would be noticed because they harvest a significant portion of their star's energy.

That would be my bet for our first verification of alien technological life. We haven't looked at all 300 billion or so galaxies but each one of those galaxies represents about 300 billion stars. If not a single one made it to Type III, then I think technological life must be exceedingly rare.

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Telescopes pick up huge number of unexplained signals coming from alien galaxies [View all] Judi Lynn Oct 2018 OP

It is future survivors of Earth's melt-down sending messages through time... Moostache Oct 2018 #1

If future humanity is warning the present I suspect the warnings will go unheeded. WheelWalker Oct 2018 #7

If those signals are ETI comms they are very energetically wasteful Loki Liesmith Oct 2018 #2

Sounds like a natural phenomenon exboyfil Oct 2018 #5

I agree but I'll hope otherwise Loki Liesmith Oct 2018 #8

Unfortunately its a futile hope as no truly interstellar civilization is likely cstanleytech Oct 2018 #13

If the civilization is like ours I'd agree Loki Liesmith Oct 2018 #16

They're from the Emperor, Ming, The Merciless." 3Hotdogs Oct 2018 #3

Only Dr. Hans Zarkoff, formerly at NASA, has provided any explanation... Moostache Oct 2018 #9

What I find interesting is that no Type III civilizations exboyfil Oct 2018 #4

Or technological civilizations are inherently unstable and prone to self-destruction... Moostache Oct 2018 #10

would we necessarily observe such a civilization? qazplm135 Oct 2018 #12

Depends on the material used to construct the dyson sphere plus where it is located. cstanleytech Oct 2018 #14

That much energy sounds a lot like something blowing up. TreasonousBastard Oct 2018 #6

That or some sort of merger. cstanleytech Oct 2018 #15

Spooky energy at a distance. Nt BootinUp Oct 2018 #11

They're reports of sexual misconduct by prominent Republicans. (n/t) Jim Lane Oct 2018 #17