Researchers may have uncovered the source of an alleged extraterrestrial broadcast last heard nearly half a century ago.
The famous “Wow!” Signal was a 72-second signal captured by a radio telescope in 1977 and considered by alien enthusiasts to be evidence of intelligent extraterrestrial life.
Now amateur astronomers have concluded that the signal may have come from a sun-like star 1,800 light-years away in the constellation Sagittarius.
That wow! The signal was acquired during a SETI (Search for Extraterrestrial Intelligence) search at Ohio State University’s Big Ear Telescope and lasted just 1 minute and 12 seconds.
Knowing that the Big Ear telescope’s two receivers were pointing towards the constellation Sagittarius at night, that was Wow! signal was recorded, Alberto Caballero, an amateur astronomer, decided to search a catalog of stars on the European Space Agency’s Gaia satellite to look for possible candidates.
“I specifically found a sun-like star,” he told Live Science.
An object called 2MASS 19281982-2640123, about 1,800 light-years away, has a temperature, diameter, and luminosity nearly identical to Earth’s Sun.
In Caballero’s findings, which have appeared in the International Journal of Astrobiology He explained that he focused on Sun-like stars because “we’re looking for life as we know it.”
Given his findings, he thinks it’s a good idea to search [the star] for habitable planets and even civilizations.’
SETI has been listening for possible messages from otherworldly technological beings since the mid-20th century.
When astronomer Jerry Ehman at Ohio State University’s Big Ear Telescope saw a printout of an anomalous signal, he scrawled ‘Wow!’ on the page and gives the event its name.
The now deconstructed big-ear telescope searched for messages in the 1420.4056 megahertz electromagnetic frequency band, which is generated by the element hydrogen.
“Since hydrogen is the most abundant element in the universe, it is reasonable to speculate that an intelligent civilization in our Milky Way wanting to draw attention to itself could emit a strong narrow-band flare signal at or near the frequency of the hydrogen neutral line,” wrote Ehman in a report in honor of the 30th anniversary.
Since then, researchers have repeatedly looked for successors from the same place, but have come up with nothing. based on a history of the American Astronomical Society.
Despite warnings, a group of scientists are launching a new project to try to contact extraterrestrial life.
The project consists of an updated message that will be broadcast into the cosmos in hopes of being picked up by extraterrestrial receivers in an updated version of the original Arecibo message broadcast in 1974.
“I think it’s totally worth it because we want to point our instruments in the direction of things that we think are interesting,” Rebecca Charbonneau, a historian who studies SETI at the Harvard-Smithsonian Center for Astrophysics and is not involved in the was work, Live Science said.
“There are billions of stars in the galaxy and we need to find a way to narrow them down,” she added.
“I don’t think it’s a coincidence that the point in human history that we start sending intelligent signals out into space is also the same point in history that we start thinking about intelligent ones.” to look for signals from space,” Charbonneau said.
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https://metro.co.uk/2022/05/26/famous-alien-wow-signal-may-have-come-from-distant-sunlike-star-16717031/ Famous "Alien" Wow! The signal could have come from a distant sun-like star