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SETI Signal

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Topic(s): science
2004-09-02 00:39:52 PDT

Mysterious signals from 1000 light years away

"Named SHGb02+14a, the signal has a frequency of about 1420 megahertz. This happens to be one of the main frequencies at which hydrogen, the most common element in the universe, readily absorbs and emits energy.

"Some astronomers have argued that extraterrestrials trying to advertise their presence would be likely to transmit at this frequency, and SETI researchers conventionally scan this part of the radio spectrum.

[...]

"The telescope has only observed the signal for about a minute in total, which is not long enough for astronomers to analyse it thoroughly. But, Korpela thinks it unlikely SHGb02+14a is the result of any obvious radio interference or noise, and it does not bear the signature of any known astronomical object.

[...]

"There are other oddities. For instance, the signal's frequency is drifting by between eight to 37 hertz per second. 'The signal is moving rapidly in frequency and you would expect that to happen if you are looking at a transmitter on a planet that's rotating very rapidly and where the civilisation is not correcting the transmission for the motion of the planet,' Korpela says."
My guess is it'll turn out to be something other than extra-terrestrials. A new sort of star, or life cycle of a star, black hole or something. Of course, short of finding a natural cause, proving a cause will be impossible. I can't think of a situation where SETI astonomers could say without doubt that the signal is created by extra-terrestrials. I mean, unless they bang out the prime numbers like they do in the movies (Contact).



Pulled eFingers:

Mom
Perhaps aliens have produced their own compressed version of the "I Love Lucy" show and they are sending it to us, gratis, for our enjoyment. Please keep me posted, if it turns out to be a cooking show (A 'La Julia Child), you know how I am...always looking for new recipes with exotic ingredients. If it turns out that the aliens are hostile, I hope they have been viewing the "Mr. Ed" show, talking horses are enough to frighten anything away.
Love from Mom :~)
Eric —
LOL, Mom :-).
Eric —
I found this on Slashdot...

Titled From the horse's and apparently from the SETI scientist I've quoted above by way of New Scientist.
"Unfortunately, reporters, editors and scientists often work at cross purposes. Reporters want to sell stories, editors want to sell magazines, and scientists want the public to hear about their research. When the science won't sell the story, there is often some creative writing that goes on.

"That said, I was both misquoted and quoted out of context in the New Scientist article. The crux of the issue is that there really isn't much chance that the 'signal' is actually extraterrestrial or even real. The point I was trying to make to the 'New Scientist' reporter was that the combination of a stable frequency between observation and the rapidly changing frequency during an observation meant that it was unlikely that it was real, and that it was likely to be a spurious signal due to noise or interference. I reiterated that several times.

"I don't know how that got misinterpreted to the point where the article claims I said the signal was unlikely to be interference or noise.

"We don't have any plans for reobservation or monitoring, and I'd give 1000:1 odds that there's nothing there."




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September 2004
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