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SETI & Anomalous Signals

Xanatic~ said:
I do it as well, and I know several others who do. Problem is somebody is making a similar program to try and find a cure for cancer. And I can't justify trying to find aliens with such slim chances instead of doing cancer research.
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do you have a link to the cancer one?
 
Stars searched for extraterrestrials
ST. LOUIS, Feb. 19 (UPI) -- A U.S. astronomer has announced her shortlist of stars where extraterrestrial life might be found.

Of an initial 17,129 "habitable stellar systems" that astronomer Margaret Turnbull, of the Carnegie Institution of Washington, and her colleagues published in 2003, Turnbull has selected a handful of stars that she considers her best bets.

She announced her list of so-called "habstars" at the 2006 Annual Meeting of the American Association for the Advancement of Science in St. Louis.

Turnbull offered five top candidate stars for those seeking only to listen for radio signals from intelligent civilizations and five candidates for those who undertake the demanding job of trying to detect Earth-like planets in orbit around nearby stars.

Turnbull's top candidate star for radio scans is beta CVn, a sun-like star about 26 light-years away in the constellation Canes Venatici -- the Hound Dogs.

SETI
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Possible Alien Message to Get Reply from Humanity
http://www.space.com/16294-wow-signal-a ... reply.html
By Natalie Wolchover, Life's Little Mysteries Staff Writer
Date: 25 June 2012 Time: 04:05 PM ET

A scan of a color copy of the original computer printout bearing the Wow! signal, taken several years after the signal's 1977 arrival.
CREDIT: The Ohio State University Radio Observatory and the North American AstroPhysical Observatory (NAAPO)
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If there's something you'd like to say to aliens, now's your chance. The Wow! signal, a mysterious radio transmission detected in 1977 that may or may not have come from extraterrestrials, is finally getting a response from humanity. Anyone can contribute his or her two cents — or 140 characters, to be exact — to the cosmic reply via Twitter.

All tweets composed between 8 p.m. EDT Friday (June 29) and 3 a.m. EDT Saturday (June 30) tagged with the hashtag #ChasingUFOs will be rolled into a single message, according to the National Geographic Channel, which is timing the Twitter event to coincide with the premiere of the channel's new series, "Chasing UFOs."

Then on Aug. 15, exactly 35 years after the Wow! signal was detected, humanity's crowdsourced message will be beamed into space in the direction from which the perplexing signal originated.

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"We are working with Arecibo Observatory to develop the best way to encrypt the transmission," said Kristin Montalbano, a spokeswoman for the National Geographic Channel. "Earlier transmissions have focused on simplicity, whereas this one will rely more on creating a complex but noticeable pattern, hopefully standing out from other random, natural noise.

"More than likely we will be using binary phase codes," or sequences of 1s and 0s.

The Wow! signal is the only blip of incoming data to have stood out from the noise in the four decades that astronomers have been scouring the heavens for signs of life — an effort known as the Search for Extra-Terrestrial Intelligence, or SETI. The Big Ear radio observatory at Ohio State University picked up the intense 72-second radio transmission coming from the direction of the constellation Sagittarius. At its peak, the transmission was 30 times more powerful than ambient radiation from deep space, prompting the volunteer astronomer Jerry Ehman to scrawl "Wow!" next to the data on a computer printout, giving the signal its name.

No one knows whether the seemingly unnatural signal really was beamed toward us by aliens, and despite great effort, scientists have never managed to detect a repeat transmission from the same spot in the sky. Thirty-five years on, the Wow! signal remains a complete mystery.[7 Huge Misconceptions about Aliens]

It is hoped alien scientists — if they do, in fact, exist — will have better luck decoding humankind's reply.

"After recognizing the pattern, the scientists on the other end would theoretically be challenged to find a way to decrypt the transmission and understand our language. No small feat, but surely finding a signal of intelligent origin from another planet would be a momentous and impactful find for them — assuming they don't already know about us from past visits! Or already follow us on Twitter," Montalbano told Life's Little Mysteries.

And if they're the aliens that sent the Wow! signal in the first place, they are likely to be an extremely advanced civilization. Scientists say the signal would have required a 2.2 gigawatt transmitter, vastly more powerful than any existing terrestrial radio station.

This story was provided by Life's Little Mysteries, a sister site to SPACE.com. Follow Natalie Wolchover on Twitter @nattyover. Follow Life's Little Mysteries on Twitter @llmysteries. We're also on Facebook & Google+.
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'Wow!' signal explained: Astronomer to lay out true origins of mysterious 'alien’ transmission
The 'Wow!' signal has perplexed scientists for decades - but an explanation could be close
Doug Bolton
Friday 15 April 2016

An American astronomer could be close to discovering the origins of a mysterious space signal which some conspiracists believe came from aliens.
The so-called 'Wow!' signal is the name given to a powerful blast of radio waves which was recorded by astronomer Jerry R. Ehman in August 1977.
While monitoring data from Ohio State University's 'Big Ear' radio telescope, Ehman came across an exceptionally strong radio signal, which lasted solidly for 72 seconds.

Drawing attention to the mysterious transmission on a printout, Ehman circled the signal and jotted down 'Wow!' next to it. Since then, it's become one of the most well-know space signals ever received.
The 'Wow!' signal has never been heard since, and its origins are still unknown. It appears to have come from an area near the M55 star cluster in the Sagittarius constellation, and some alien enthusiasts believe its strength and clarity mean it came from another intelligent species.

However, this kind of theory is exactly what Professor Antonio Paris, from Florida's St. Petersburg College, is trying to disprove.
In a previous job, Paris was an analyst for the US Department of Defence, and he's hoping to use this investigative background to dig into the true origins of the signal.

Speaking to The Guardian, he said: "I approached the 'Wow!' signal as if I'm going back to the crime scene."
"It's a cold case, so I went to various [astronomical] databases to find culprits or suspects that were at this crime scene at the time."

Rather than being an attempt at contact by an alien civilisation, Paris believes the signal comes from two recently-discovered comets, which were near the signal's suspected place of origin when it was picked up.
According to the theory, the giant clouds of hydrogen which surround the comets are responsible for the signal. It's a compelling explanation, especially since the radio frequency hydrogen naturally emits is 1420 MHz, the same frequency as the 'Wow!' signal.

The two comets will pass by the vicinity of the signal once again in the near future, and Paris wants to monitor them to see if they produce it again. In order to prove his theory, he'll need a radio telescope, and has set up a GoFundMe page in order to raise the money.
His target is $16,000 and he's already raised almost $14,000 in a month, so an explanation is looking promising.

One of the comets will pass through the system in January 2017, while the other will arrive a year later - so we may not have to wait for long to see if the 'Wow!' signal is just a cosmic anomaly, rather than a deliberate transmission.

http://www.independent.co.uk/news/s...eriment-astronomy-antonio-paris-a6985466.html
 
Here's a substantial discussion of the 1977 Wow! radio signal, one astronomer's recently-published case for it having originated with one or more comets, and other astronomers' reactions to his theory ...

Comet Likely Didn't Cause Bizarre 'Wow!' Signal (But Aliens Might Have)

An astronomer thinks he's pinpointed the source of a mysterious radio signal from space: a passing comet that nobody knew about. But his colleagues said they're still skeptical of the explanation, noting that comets don't emit radio waves in the right way. ...
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FULL STORY: http://www.space.com/37178-astronomers-skeptical-about-wow-signal.html
 
This newly published research report identifies a star system in Sagittarius most likely to have been the source of the "Wow!" signal, based on the assumption it could have come from a civilization / star system similar to ours.
Famous 'alien' Wow! signal may have come from distant, sunlike star

Researchers may have pinpointed the source of a famous supposed alien broadcast discovered nearly a half century ago.

The prominent and still-mysterious Wow! Signal, which briefly blared in a radio telescope the night of Aug. 15, 1977, may have come from a sun-like star located 1,800 light-years away in the constellation Sagittarius. ...

Researchers have since repeatedly searched for follow-ups originating from the same place, but they have turned up empty, according to a history from the American Astronomical Society. The Wow! Signal most likely came from some kind of natural event and not aliens, Caballero told Live Science, though astronomers have ruled out a few possible origins like a passing comet.

Still, Caballero noted that in our infrequent attempts to say hello to E.T., humans have mostly produced one-time broadcasts, such as the Arecibo message sent toward the globular star cluster M13 in 1974. The Wow! Signal may have been something similar, he added.

Knowing that the Big Ear telescope's two receivers were pointing in the direction of the constellation Sagittarius on the night of the Wow! Signal, Caballero decided to search through a catalog of stars from the European Space Agency's Gaia satellite to look for possible candidates.

"I found specifically one sun-like star," he said, an object designated 2MASS 19281982-2640123 about 1,800 light-years away that has a temperature, diameter and luminosity almost identical to our own stellar companion. Caballero's findings appeared May 6 in the International Journal of Astrobiology. ...
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FULL STORY: https://www.livescience.com/wow-signal-origin-star
 
Here are the bibliographic details and abstract from the published research report. The full report is accessible at the link below.

Caballero, A. (2022).
An approximation to determine the source of the WOW! Signal.
International Journal of Astrobiology, 1-8.
doi:10.1017/S1473550422000015

Abstract
In this paper it is analysed which of the thousands of stars in the WOW! Signal region could have the highest chance of being the real source of the signal, providing that it came from a star system similar to ours. A total of 66 G and K-type stars are sampled, but only one of them is identified as a potential Sun-like star considering the available information in the Gaia Archive. This candidate source, which is named 2MASS 19281982-2640123, therefore becomes an ideal target to conduct observations in the search for techno-signatures. Another two candidate stars have a luminosity error interval that includes the luminosity of the Sun, and 14 candidates more are also identified as potential Sun-like stars, but the estimations on their luminosity were unknown.

SOURCE / FULL REPORT: https://www.cambridge.org/core/jour...e-wow-signal/4C58B6292C73FE8BF04A06C67BAA5B1A
 
EnolaGaia said:
This newly published research report identifies a star system in Sagittarius most likely to have been the source of the "Wow!" signal, based on the assumption it could have come from a civilization / star system similar to ours.

FULL STORY: https://www.livescience.com/wow-signal-origin-star
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This seems like a fairly obvious endeavour. I'm surprised we haven't put more effort previously into examining that part of the sky, vast though it is.
 
PeteByrdie said:
This seems like a fairly obvious endeavour. I'm surprised we haven't put more effort previously into examining that part of the sky, vast though it is.
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I've seen some previous efforts to examine the stars in the WOW search region before. But information from the Gaia parallax measurement satellite has only recently become available; this allows astronomers to determine the luminosity and radius of certain stars with reasonable accuracy.
 

Has China found alien technosignatures from space?​


The Chinese have built the biggest radio telescope in the world and they have spent the past several years knocking on doors in distant parts of the galaxy to see if any technologically advanced extraterrestrial lifeforms might answer. The FAST telescope in Pingtang County, Guizhou, southwest China has a diameter of 1,600 feet and it’s been listening to many stars known to have exoplanets. This week, the researchers in charge of the project announced that somebody might be out there after all. They’ve detected “suspicious” signals that may be technosignatures from an alien civilization beaming information out into the cosmos.

The researchers have identified what they have called “suspicious” signals from space as part of a search for evidence of aliens, and work is ongoing to determine that they might be…

On Tuesday, the Chinese state media outlet Science and Technology Daily reported that researchers under professor Zhang Tongjie, described as chief scientist of the China Extraterrestrial Civilization Research Group at Beijing Normal University, had found a number of “possible technological traces” from intelligent civilizations elsewhere in the cosmos.

The Chinese still aren’t saying exactly what was so “suspicious” about the three different signal sources that made them potential candidates to be technosignatures. But it’s probably safe to assume that they contained something nonrandom in appearance that would differentiate them from the rest of the cosmic background noise, suggesting the possibility that they might be artificial in origin.

But their science team also readily admits that the signals very well could be “some kind of radio interference” that they would still need to rule out.

https://hotair.com/jazz-shaw/2022/06/15/has-china-found-alien-technosignatures-from-space-n476475

maximus otter
 
Are we setting up a Cortes killing Mayans situation ?

We are trying to receive and also send signals into space to attract aliens.

Some entity might look at humans as a food source ?

There is a famous Twilight Zone episode called “ Serving Man “ where the people did not realize that they were the night’s meal for the aliens who landed on earth.
 
charliebrown said:
Are we setting up a Cortes killing Mayans situation ?

We are trying to receive and also send signals into space to attract aliens.

Some entity might look at humans as a food source ?

There is a famous Twilight Zone episode called “ Serving Man “ where the people did not realize that they were the night’s meal for the aliens who landed on earth.
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My husband's favorite 'Twilight Zone' episode! And makes you think.
 
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Ronnie Jersey said:
My husband's favorite 'Twilight Zone' episode! And makes you think.
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Yeah, I liked the touch about the woman being able to recognize it was a receipe book but the men wouldn't listen. Typical.
 
Tunn11 said:
Was it based on the story by Damon Knight, who also wrote "Charles Fort prophet of the unexplained"?

​

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It was a short story I remember reading in an anthology but I don't remember who the author was.
 
Moving back to the story at issue ... An American researcher involved in the project that detected the 3 recently-reported anomalous signals is confident the signals represented terrestrial radio interference.
China’s 'alien' signal almost certainly came from humans, project researcher says

Dan Werthimer, a Search For Extraterrestrial Intelligence (SETI) researcher at the University of Berkeley, California and a coauthor on the research project (opens in new tab) which first spotted the signals, told Live Science that the narrow-band radio signals he and his fellow researchers found "are from [human] radio interference, and not from extraterrestrials."

Natural sources don't typically produce narrow-band radio signals. Scientists picked up three of these signals, seemingly from space, in 2019 and 2022 using the largest radio telescope in the world — the Five-hundred-meter Aperture Spherical radio Telescope (FAST), nicknamed "Sky Eye," which was performing a preliminary scan of exoplanets in preparation for an upcoming five-year-long sky survey. ...
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FULL STORY: https://www.livescience.com/china-did-not-detect-aliens
 
charliebrown said:
Are we setting up a Cortes killing Mayans situation ?

We are trying to receive and also send signals into space to attract aliens.

Some entity might look at humans as a food source ?

There is a famous Twilight Zone episode called “ Serving Man “ where the people did not realize that they were the night’s meal for the aliens who landed on earth.
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We've been sending signals since the late 1800s, if they're out there within a sphere roughly 130 light years radius from Earth, and they're listening, they've already heard us.
 
Probably seen the twilight zone episode as well. :)
 
Radio signal from ancient galaxy is most distant ever detected
A huge radio telescope in India has picked up a radio signal from the most distant galaxy ever recorded – more than eight billion years ago.
Detecting radio signals from distant galaxies is difficult as the signals become weaker the further away a galaxy is from Earth, making it tricky for current radio telescopes to pick up.
Researchers from Montreal in Canada and India have captured a radio signal at a specific wavelength known as the 21cm line, allowing astronomers to peer into the secrets of the early universe.
extremely long URL copied here

And when they listened to the radio signal it was the first broadcast by this chap!
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