07 Jun '17 13:41>
That signal from 1977 has been identified:
https://phys.org/news/2017-06-wow-mystery-space.html#nRlv
https://phys.org/news/2017-06-wow-mystery-space.html#nRlv
Originally posted by ogbSETI is not about establish an interstellar communication.
SETI has been a dumb idea from the beginning. Look at all the money wasted..Even if a signal is detected,,so what ? It'd take a million years to answer and get a response. By then our knowledge will be far beyond waiting for a reply..
Originally posted by FabianFnasI agree about war on earth, but why do we assume that alien life, if we contact it, will be friendly? That seems a good reason to stop SETI.
SETI is not about establish an interstellar communication.
SETI gives us the answer if someone else is out there.
SETI is well spent money. War on earth is not.
Originally posted by C J HorseSignals from stars and such from all the close in stars, say within 200 light years from Earth, have been looked at closely and nothing yet from them. Assuming a possibly hostile intelligence found Earth, they would have to be more than 200 light years away and assuming nobody can go faster than light, would mean even if they heard us and sent ships they would get here hundreds of years in the future and in the meantime, we would be developing our sciences to such an extent we would have a good chance of being able to defend ourselves. But our signals have only reached out about 100 light years radius so a 200 light year wide bubble of our radiation of radio waves is going on.
I agree about war on earth, but why do we assume that alien life, if we contact it, will be friendly? That seems a good reason to stop SETI.
Originally posted by sonhouseThat all hinges on the premise that they have not developed quantum tunneling.
Signals from stars and such from all the close in stars, say within 200 light years from Earth, have been looked at closely and nothing yet from them. Assuming a possibly hostile intelligence found Earth, they would have to be more than 200 light years away and assuming nobody can go faster than light, would mean even if they heard us and sent ships they wo ...[text shortened]... t be US who would win out with 20,000 years of continuous development of science and technology.
Originally posted by sonhouseMaybe they are here, perhaps they do not care, they do not exist, or do not have that technology...I don't know. However, survival of the fittest makes no guarantees on decreasing hostility with increased technology. If it's us or them and they can get here, it's them...
If that is so why are they not here NOW?
Originally posted by C J HorseWho says that we are about to connect with an alien race? There are no such projects going, and I don't think we will start such a project either.
I agree about war on earth, but why do we assume that alien life, if we contact it, will be friendly? That seems a good reason to stop SETI.
Originally posted by C J HorseAre you under the impression SETI is going to contact aliens? If so you should look up what SETI actually is. SETI is a bunch of RADIOS. Get it? Receivers ONLY. They don't transmit ANYTHING.
I agree about war on earth, but why do we assume that alien life, if we contact it, will be friendly? That seems a good reason to stop SETI.
Originally posted by sonhousebut, assuming they haven't been deliberately sending signals specifically to Earth for millions of years hoping to get a response thus assuming any signals we can receive from them are stay accidental signals; for there own domestic purposes they might be using fibre optic broadband with no need for ever using radio. Or if they do use some radio, the stray radio signals may be too weak for us to detect. It doesn't make any sense after all to make the radio signal any stronger than what is required to send the intended message over the relatively 'short' distance; why waste energy making the signal way to much unnecessarily strong for the requirement of detecting at the intended destination of the signal?
We already examined signals from stars out to about 200 light years with no apparent signals so there probably are not aliens that close to Earth ....
Originally posted by humyOf course we wouldn't know at this point in time considering our level of tech, it may have actually happened cosiderimg the neandertal V homo sap thing. The lessening of the use of RF is already happening to humans, like 40 years ago there was a thriving short wave broadcast industry since around 1925 or so and all that RF has established a wavefront about 100 light years radius, so a 200 light year bubble of our radiation is already on its way into the galaxy but in human terms, a very slow growth of the wavefront, a hundred years from now it will still only be three or four hundred year wide bubble and if some alien was listening for a long term the would notice our reduced dependence on radio. My guess is the same thing would happen to any high tech civilization, they would arrive at our state at some point in time, maybe inventing the first transmitters, spark gap things, then proceeding to modulated narrow bandwidth signals and then transit to say IR transmissions and listeners would just find an end to radio waves.
but, assuming they haven't been deliberately sending signals specifically to Earth for millions of years hoping to get a response thus assuming any signals we can receive from them are stay accidental signals; for there own domestic purposes they might be using fibre optic broadband with no need for ever using radio. Or if they do use some radio, the stray radi ...[text shortened]... ing or colonising out planet) thus didn't inadvertently prevent us from evolving into existence?
Originally posted by sonhouseOK - keep your hair on and stop speaking to me as if I were Freaky. I never said any such thing or intended it. Simply a harmless comment about the pointlessness, in my view, of the whole thing.
Are you under the impression SETI is going to contact aliens? If so you should look up what SETI actually is. SETI is a bunch of RADIOS. Get it? Receivers ONLY. They don't transmit ANYTHING.
Originally posted by C J HorseThere's a difference between attempting to detect life and trying to have a chat. For one thing I doubt a transmitter powerful enough could be built.
I agree about war on earth, but why do we assume that alien life, if we contact it, will be friendly? That seems a good reason to stop SETI.