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Radio Wave Emission from Proxima Centauri being investigated by scientists

zen

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Within our limited perspective, radio doesn't seem the most efficient means of transmitting between known star systems that are inhabited.
Lasers offer a far more logical solution and in turn an explanation for why sublight (tardion) civilisations might not have revealed themselves to us. We just aren't in the line of sight between such communications and unless the beam passes through a gas cloud or asteroid/comet field, where we might catch reflections of the beams, we've got precious little chance of seeing it.

Of course once we engage ideas of entanglement based communication, this raises all sorts of problems and potential pitfalls.
We just don't know what non-random simultaneous behaviour between particles might produce.......

Although there is one theory that opens that door......and in turn is an explanation for the idea of consciousness itself......which means even if we can get that to work, it's not necessarily any other civilisation we might end up talking to......
 

Justo Miranda

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In 1957, astronomers of the Ohio State University started to scan the cosmos by means of a radio telescope searching signs of radio transmissions from hypothetical extraterrestrial civilizations.

Acting with an anthropocentric mind, they addressed their instruments to the stars Tau Ceti (spectral class G) and Epsilon Eridani (spectral class K) for being the nearest among those like our sun. In their search, they selected the wavelengths between 18 and 21 centimeters, corresponding to the spectral lines of the hydroxyl radical and the hydrogen, the band of electromagnetic spectrum named Water hole. They were looking for the existence of water in these star systems.

But water is not the only possible solvent for life chemistry, it all depends on environmental conditions. In 99 per cent of the cosmos, temperatures are so low that water can be replaced by liquid ammonia, liquid methane, liquid hydrogen fluoride, liquid nitrogen, liquid oxygen, liquid hydrogen, liquid helium or liquid argon. Even mercury and lava could be considered in environments with extreme temperatures and pressures.

Carbon is also not essential, which can be replaced by phosphorus or silicon.

In my opinion the search for ET is poorly raised because, in short, it all depends on what we are looking for, how we are looking for it and what we hope to find.

Alien life is very possible due to the abundant variety of amino acids found by radio astronomers in interstellar clouds.

Intelligent alien life is statistically probable (Frank Drake equation).

Intelligent alien life interested in interstellar travel is less probable. It would have to be an energy rich culture, with the curiosity of a young civilization (in ours, it only lasted 40 years) or with the conquest spirit of some mad individuals. Difficult that all these factors coincide in the same society.

Chronologically speaking, it is not very probable that two civilizations evolve at the same time and are ready for contact. A few thousand years are not much for a galaxy and a too long period for the UN, NATO or the III Reich.

There's the theory of cyclical history as proposed by Oswald Spengler (and developed in fiction by A.E. van Vogt, Robert A. Heinlein and Isaac Asimov). According to that theory, a civilization can be ‘young’ and even barbaric, and yet high-tech, since civilizations comes and goes, though most of the technological progress done by the previous civilizations aren't forgotten.

Humanoid form is the result of hazard and millions of random mutations.
The reason why the Hollywood ETs are humanoid is economic…. a guy disguised with a rubber head.
Actors wish to show their faces to increase their popularity and for that reason the aliens in the TV series Stargate are almost human.

If there are intelligent creatures somewhere in the cosmos, the only sure thing about them is that they won't look like us, ET may have any shape except that of a pretty girl.

Gestalt organisms, smart clouds, natural computers integrated by metallic particles in a magnetic field, flying plants, organic film on water, metallic skeleton creatures, giant sponges, planetary wide fungus, energy balls, solar parabolas, insect evolved in low gravity, organisms made of neutron matter, alive comets, wave vortices, thinking crystals and six meters long caterpillars may be shaped by the evolutionary pressures of another world.
 

Justo Miranda

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Not exactly if you think about the quantum entanglement effect.
I aree with you about the nonsense of radio waves As interstellar communication system, but let's assume that an advanced civilization detected out radio signal and it trying to answer Us the same way.
using a technology based on the spin-spin theory:oops:
 

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