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Alien civilization (reportedly) found with a telescope ...

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Alien civilization (reportedly) found with a telescope ...

Old 16th Jun 2022, 21:29
  #21 (permalink)  

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Originally Posted by NutLoose View Post
You got one of those hidden entrance traffic mirrors Shy
No, Iím on holiday in South Wales.
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Old 17th Jun 2022, 09:49
  #22 (permalink)  
 
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There is almost certainly life, including intelligent life, on other planets. It would be extremely unlikely to be the only ones in a universe containing billions of stars and millions of habitable planets. So there must be intelligent life out there.

However, to transmit a signal from one planet to another requires the power of a sun; a "normal" radio transmitter output would be lost in the noise before it reached anywhere, because the distances are so immense.

We can hopefully detect potential signs of life on other planets, but it will be inferred, from chemical signatures that can be detected by telescopes rather than through direct contact, fantastic though that would be.

We are just barely still in contact with our Voyager 1 and 2 probes after a major upgrade to the communications dish in Australia, and those probes are only at the edge of our own solar system, (after 44 years of flight). https://voyager.jpl.nasa.gov/mission/status/

Our next nearest star is 4 light-years away - that is to reach it flying at the speed of light, which is about 186 thousand miles per second, would take four whole years.

The only thing that can produce enough power to go that far is a star, whether shining visible light or transmitting radio frequencies. It would seem that sadly we have very little chance of communicating with other intelligent life, unless quantum entanglement turns out to be useable.
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Old 17th Jun 2022, 11:00
  #23 (permalink)  
 
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When the nearest habitable planet sent us a radio signal to say "Here we are, please come visit", the dinosaurs were still roaming in the gloaming. In the meantime, that entire civilisation has disappeared, as has their planet.
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Old 17th Jun 2022, 11:57
  #24 (permalink)  
 
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Originally Posted by Ascend Charlie View Post
When the nearest habitable planet sent us a radio signal to say "Here we are, please come visit", the dinosaurs were still roaming in the gloaming. In the meantime, that entire civilisation has disappeared, as has their planet.
And we'll reply "we have Boris Johnson", and they'll say "change of plan, please don't visit".
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Old 17th Jun 2022, 12:16
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I thought all the aliens were in no 10, and elsewhere in Westminster?
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Old 17th Jun 2022, 12:39
  #26 (permalink)  
 
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Did someone say it was 400 odd lightyears away ? Better pack a good lunch then.
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Old 17th Jun 2022, 16:12
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400 odd light years away? Does that imply it is really 800 light years away?
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Old 18th Jun 2022, 10:33
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Originally Posted by artee View Post
And we'll reply "we have Boris Johnson", and they'll say "change of plan, please don't visit".
I bet Boris would rather go there than face the voters and Tories of Wakefield.
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Old 19th Jun 2022, 06:46
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“Complex life is separated from the simplest life forms by several very unlikely steps and therefore will be much less common. Intelligence is one step further, so it is much less common still,” said Prof Watson.

His model, published in the journal Astrobiology, suggests an upper limit for the probability of each step occurring is 10 per cent or less, so the chances of intelligent life emerging is low – less than 0.01 per cent over four billion years.

Well given that the universe is around 13 billion years old and that there are how many trillion trillion planets than .01 % becomes rather a descent number.
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Old 19th Jun 2022, 09:04
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Aliens with a telescope....who would have thought?
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Old 19th Jun 2022, 09:55
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I suppose an archive package could turn up one day from a long dead civilisation a stupendous distance away, with pictures and stories of it's history and achievements. Sounds rather sad and depressing,..... it once might have been, once only kind of thing. With zero prospect of real time interaction I find it hard to get excited about it as it is as unattainable as our own past.
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Old 19th Jun 2022, 10:08
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For those interested in this subject I'd recommend two very good documentaries among the hundreds of crappy examples.
James Fox's "The Phenomenon" and the similarly named (!) "Ariel Phenomenon" - the latter an examination of the astonishing event that occurred at a school in Zimbabwe in 1994.
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Old 19th Jun 2022, 15:13
  #33 (permalink)  
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Can someone explain to me why it follows that if the universe is so vast in time-space, then there MUST BE another intelligent life out there?

Is it not a more plausible conclusion, that if the universe is so vast in time-space, then every possible event that could happen will happen? So that an extremely improbable possibility of a complex, intelligent life form emerging somewhere is what might have eventually occurred in one tiny "corner" of the universe, here on Earth.

I think of it like playing a lottery. We fail to win the jackpot not because the odds are so small. We fail to win the jackpot, because most of us simply run out of time (life). If you could live for just one million years (not a lot on universe scale) playing the lottery on a regular basis, your jackpot win would be guaranteed, as the matching draw would eventually happen.
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Old 20th Jun 2022, 06:59
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Originally Posted by finestkind View Post
ďComplex life is separated from the simplest life forms by several very unlikely steps and therefore will be much less common. Intelligence is one step further, so it is much less common still,Ē said Prof Watson.

His model, published in the journal Astrobiology, suggests an upper limit for the probability of each step occurring is 10 per cent or less, so the chances of intelligent life emerging is low Ė less than 0.01 per cent over four billion years.

Well given that the universe is around 13 billion years old and that there are how many trillion trillion planets than .01 % becomes rather a descent number.
Which is simply an attempt to reformulate Drake's Equation. And therefore performs the same logical fallacy of attempting to extrapolate from a single point. All we know for sure is that we are here so it is has happened at least once. We have no way of knowing if we are 'typical' or the result of one or even many of the most incredible of flukes. Of the many 'unlikely' steps from barren rock to advanced civilisation, only one of those probabilities needs to approach zero to make the Universe a very lonely place.

I think of it like playing a lottery...
Except in this case we do not know the odds.

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Old 20th Jun 2022, 07:28
  #35 (permalink)  
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Whenever I think of potential alien visitations these days, I think of this...

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Old 20th Jun 2022, 14:27
  #36 (permalink)  
 
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Originally Posted by JRK View Post
Can someone explain to me why it follows that if the universe is so vast in time-space, then there MUST BE another intelligent life out there?
That one's pretty easy really - if you think that physics and matter and gravity and magnetism and elements all the other things we have so far discovered are spread throughout the universe then it stands to reason that life will be also

Life itself is really no more miraculous than gravity or electrons or any of the other things in the physical world. We just think it's more special because we like to think we are special
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Old 20th Jun 2022, 16:31
  #37 (permalink)  
 
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A bit of perspective is needed.

As discussed in earlier posts, The number of solid bits floating around it in space mean that there is almost certainly life out there. Timescales mean much is highly unlikely to be like us (if the Earthís time is represented by 24 hrs then humans have been around for 1 second). The distances are so vast that any signals will be negligible when they get here, unless highly-focused and/or amplified en route.

I think someone is angling for more funding.

The laws of physics seem to hold in space as on Earth, limiting travel to near the speed of light. Any alien life is unlikely to survive the time coming here, thus leaving un-aliened vehicles as the only way to explore. The reported UFO sightings by the US military are intriguing, but itís hard to explain why there are so few sightings when their programming would surely be to stick around (silly to go all that time and distance only to go home without exploring).

I fear any answers will come long after humans have destroyed themselves, certainly long after our lifetimes. In the mean time, Mars Attacks is a fun film.
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Old 20th Jun 2022, 21:19
  #38 (permalink)  
 
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When you consider that every atom in your body has passed through at least three stars being created and exploding, then it isn't too much of a stretch to see that it is happening all over the universe.

There is a fascinating 50-minute video on YooChoob on the Periodic Table, and how elements of hydrogen and helium can come from a star the size of our sun, but much bigger stars are needed to create bigger elements, and the elements past iron are created in about 3 seconds before a massive star blows up and spits it all out into space.
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Old 20th Jun 2022, 22:16
  #39 (permalink)  
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Originally Posted by Sue VÍtements View Post
That one's pretty easy really - if you think that physics and matter and gravity and magnetism and elements all the other things we have so far discovered are spread throughout the universe then it stands to reason that life will be also
Does it?

All these fine things you described do not guarantee emergence of such complex thing as a human mind. They don't even make it likely.



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Old 21st Jun 2022, 04:05
  #40 (permalink)  
 
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All these fine things you described do not guarantee emergence of such complex thing as a human mind. They don't even make it likely.
So your answer would be The Invisible Friend In The Sky? Even less likely.
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