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Should we be signalling to ET ?


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#1    Saru

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Posted 13 June 2013 - 12:34 PM

A continuous message beacon aimed at contacting aliens is being hailed and criticized in equal measure.

io9.com said:

A group of scientists and entrepreneurs has created the world’s first continuous message beacon to communicate with extraterrestrial civilizations. And for a fee, people can use it to transmit their own messages into space. But not everyone thinks this project is a good idea.

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#2    WoIverine

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Posted 13 June 2013 - 01:11 PM

Should we be signaling ET? We've already done it for so long...so many people already see weird craft flying around in our skies...I think it's a little late to be asking that question.


#3    Godofcats

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Posted 13 June 2013 - 01:39 PM

I don't think we should. I don't know why people think an advanced civilization equals a peaceful civilization.


#4    Frank Merton

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Posted 13 June 2013 - 01:42 PM

View PostWoIverine, on 13 June 2013 - 01:11 PM, said:

Should we be signaling ET? We've already done it for so long...so many people already see weird craft flying around in our skies...I think it's a little late to be asking that question.
That is often said, and theoretically we now could be detected by very advanced societies on the hundred or so nearest systems, but they would have to be looking hard and the further out our signals get the weaker they will be.


#5    WoIverine

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Posted 13 June 2013 - 01:43 PM

Even a predominantly peaceful advanced civilization could have factions that are not so peaceful, ala General Zod in the new Man of Steel movie.

Edited by WoIverine, 13 June 2013 - 01:44 PM.


#6    Frank Merton

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Posted 13 June 2013 - 01:45 PM

View PostGodofcats, on 13 June 2013 - 01:39 PM, said:

I don't think we should. I don't know why people think an advanced civilization equals a peaceful civilization.
I tend to generally think that will be the case.  Technology will soon reach the point here where a few lunatics could destroy us, so that would probably be the same elsewhere.  Longer term survival will require peace.I agree with you though that I don't think we should set up any beacons or stuff like that.  We just don't know enough and what I said above is only surmising.


#7    seeder

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Posted 13 June 2013 - 01:53 PM

we cannot even communicate with earth based animals, so why on earth, pardon the pun,  do we imagine that an alien race could ever understand any signal we send?  Besides this seems just a money spinner if you ask me. Radio signals deteriorate over time/distance so even if it was picked up, it might just be blended in with all the natural noises of the universe


typo's

Edited by seeder, 13 June 2013 - 01:53 PM.

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#8    Ashotep

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Posted 13 June 2013 - 01:53 PM

I don't think so, why invite trouble.  I think we are already being visited but so far none of them have tried to exterminate us so they can have our planet.  If they make contact they could bring some sort of bacteria with them we have no immunity to or cure for.


#9    Ashotep

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Posted 13 June 2013 - 01:56 PM

View Postseeder, on 13 June 2013 - 01:53 PM, said:

we cannot even communicate with earth based animals, so why on earth, pardon the pun,  do we imagine that an alien race could ever understand any signal we send?  Besides this seems just a money spinner if you ask me. Radio signals deteriorate over time/distance so even if it was picked up, it might just be blended in with all the natural noises of the universe


typo's
I don't think they would have to understand what we are saying to know it is a language of intelligent beings.  If they are advanced they probably can detect weak signals and sort them out from the clutter of noise the universe puts out.


#10    Spacenut56

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Posted 13 June 2013 - 02:06 PM

Wolverine is right, its too late. We have been sending out radio/tv transmissions for decades, plus throw in the attempts with SETI, and then there are the Voyagers 1 and 2 spacecraft which have earth info on them both.


#11    seeder

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Posted 13 June 2013 - 02:07 PM

And here is an old, 2008 article about an attempt to contact the nearest potentially inhabitable planet, and I quote some paragraphs:

"A television company has joined forces with a social networking site to send a message to the nearest theoretically inhabitable planet. But can our television and radio broadcasts already be picked up in space?

The latest is a collaboration between RDF and Bebo to send a signal to the planet Gliese C, more than 20 light-years away, carrying 500 messages from Earth.

Space scientist Dr Chris Davis, of the Rutherford Appleton Laboratory, says it is possible that television and radio signals from Earth could be picked up on other planets, but it isn't easy.

There are two things that you would need to get a signal [to other planets] - firstly, it has to be able to leave our planet, secondly it would have to have as much power as possible," says Dr Davis.

"As you go into space that power would dissipate. They would need more and more sensitive equipment to pick it up."

more
http://news.bbc.co.u...ine/7544915.stm


and...


"Aliens can't hear us", says astronomer (Frank Drake)

Fainter broadcasting signals and digital switchover mean Earth will soon be undetectable to extraterrestrials.

"The trouble is that we are making ourselves more and more difficult to be heard," said Dr Drake. "We are broadcasting in much more efficient ways today and are making our signals fainter and fainter."

http://www.guardian....r-us-astronomer


Besides, with the WOW signal, or the alleged alien signal, did we ever understand that? NO!

Anyway to keep on topic, I dont think sending signals out will do us any harm at all, no matter if we even got a signal back, we still cannot possibly go to any nearby star with habitable planets...

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#12    Frank Merton

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Posted 13 June 2013 - 02:15 PM

View PostSpacenut56, on 13 June 2013 - 02:06 PM, said:

Wolverine is right, its too late. We have been sending out radio/tv transmissions for decades, plus throw in the attempts with SETI, and then there are the Voyagers 1 and 2 spacecraft which have earth info on them both.
What you say is, frankly, really astonishing.  These won't be anywhere near even the nearest stars in a thousand years, and that their presence would be noticed is just incredibly unlikely.  The whole thing was pure hype.


#13    Spacenut56

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Posted 13 June 2013 - 02:20 PM

View PostFrank Merton, on 13 June 2013 - 02:15 PM, said:

What you say is, frankly, really astonishing.  These won't be anywhere near even the nearest stars in a thousand years, and that their presence would be noticed is just incredibly unlikely.  The whole thing was pure hype.

So then your saying that there is no possibility that any alien life maybe travelling around our solar system just may have seen or ran into Voyager then? I would like to think it is possible. You can't rule it in or out. I believe there is life out there in the cosmos for what its worth.


#14    Frank Merton

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Posted 13 June 2013 - 02:27 PM

Whether there is life in the cosmos is not at issue.  The question is whether it is nearby.

Any space travelers in our solar system would be more likely to find the Earth than Voyager.


#15    seeder

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Posted 13 June 2013 - 02:34 PM

View PostFrank Merton, on 13 June 2013 - 02:27 PM, said:

Whether there is life in the cosmos is not at issue.  The question is whether it is nearby.

Any space travelers in our solar system would be more likely to find the Earth than Voyager.

exactly right, space is too  big and the voyagers are too small. It'd be like driving down a 5 lane endless motorway at speed with the intention of spotting a single grain of sand, which could be anywhere, in all directions and distances from your car.

Facts do not cease to exist because they are ignored
It's not the depth of the rabbit hole that bugs me... It's all the rabbit poop you stumble over on your way down...
“It's easier to fool people - than to convince them that they have been fooled.”  Mark Twain




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