The hunt for alien civilizations

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andmar74
Posts: 93
Joined: Mon May 24, 2021 9:10 am

The hunt for alien civilizations

Post by andmar74 »

Exiting news about Tabby's star: https://en.wikipedia.org/wiki/Tabby%27s_Star

Here's a great (new) video from John Michael Godier:

Quick summary: Some years ago, Tabby's star was found to show peculiar behavior. The light from the star was dipping up to 20 %. That's not normal for that type of star. Maybe there is some kind of structure around it. Then it was found that the stuff blocking the light couldn't be a solid object, but must be fine dust. Now, Tabby's star is starting to dim again, and possibly a periodicity of some 1500 days has been found. That would place the dust in the habitable zone around the star. The dust can't be stable there as it will be blown away by the star. So more dust most be continuously produced.

Maybe the dust is produced by alien asteroid mining or stellar lifting.

There's also the mystery of the long time dimming of Tabby's star.

If advanced civilizations are common in the Galaxy, and their activity is visible to us with a certain technology ,it's logical that as we get closer to that level of technology, we will see hints of the alien technology, but like looking into a fog, it's fuzzy at first. When our technology improves, it will be clear what we are seeing.
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caltrek
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Re: The hunt for alien civilizations

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Beyond “Fermi’s Paradox” - What is the “SETI-Paradox” Hypothesis?
by Matt Williams
October 5, 2021

https://www.universetoday.com/149513/be ... ore-149513

Introduction:
(Universe Today) Welcome back to our Fermi Paradox series, where we take a look at possible resolutions to Enrico Fermi’s famous question, “Where Is Everybody?” Today, we examine the possibility that we haven’t heard from any aliens is because no one is transmitting!

In 1950, Italian-American physicist Enrico Fermi sat down to lunch with some of his colleagues at the Los Alamos National Laboratory, where he had worked five years prior as part of the Manhattan Project. According to various accounts, the conversation turned to aliens and the recent spate of UFOs. Into this, Fermi issued a statement that would go down in the annals of history: “Where is everybody?”

This became the basis of the Fermi Paradox, which refers to the disparity between high probability estimates for the existence of extraterrestrial intelligence (ETI) and the apparent lack of evidence. Since Fermi’s time, there have been several proposed resolutions to his question, including the possibility that everyone is listening, but no one is broadcasting – otherwise known as the “SETI-Paradox.”

This theory comes down to the noticeable divide between what is referred to as “passive SETI” and “active SETI,” the latter of which is more commonly known today as Messaging Extraterrestrial Intelligence (METI). These differences in approach have become the focal point of attention in recent years as the two have become more differentiated, and the latter has become more common.
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