Breakthrough Listen – nietypowe sygnały BY KRZYSZTOF KANAWKA ON 20 GRUDNIA 2020
Peter Worden, przewodniczący Breakthrough Prize Foundation poinformował o odebraniu kilku “nietypowych” sygnałów radiowych w ramach programu Breakthrough Listen. Najsilniejsze z nich pochodzą od Proximy Centauri. (...)
https://kosmonauta.net/2020/12/breakthrough-listen-nietypowe-sygnaly/Alien Hunters Discover Mysterious Signal from Proxima CentauriBy Jonathan O'Callaghan, Lee Billings on December 18, 2020
Strange radio transmissions appear to be coming from our nearest star system; now scientists are trying to work out what is sending them(...) Most curiously, it occupies a very narrow band of the radio spectrum: 982 megahertz, specifically, which is a region typically bereft of transmissions from human-made satellites and spacecraft. “We don’t know of any natural way to compress electromagnetic energy into a single bin in frequency” such as this one, Siemion says. Perhaps, he says, some as-yet-unknown exotic quirk of plasma physics could be a natural explanation for the tantalizingly concentrated radio waves. But “for the moment, the only source that we know of is technological.” (...)
“If you see such a signal and it’s not coming from the surface of Earth, you know you have detected extraterrestrial technology,” says Jason Wright, a SETI-centric astronomer at Penn State University in Pennsylvania. “Unfortunately, humans have launched a lot of extraterrestrial technology.” (...)
One might think, then, that the case would be closed. But while a natural cosmic source may seem unlikely, it cannot yet be ruled out—and, the thinking goes, as unlikely as a natural explanation might be, an “unnatural” explanation such as aliens is even less likely still. Consequently, every member of the Breakthrough Listen team interviewed for this article steadfastly insists the chance of this being anything other than terrestrial interference is exceedingly remote. “The most likely thing is that it’s some human cause,” says Pete Worden, executive director of the Breakthrough Initiatives. “And when I say most likely, it’s like 99.9 [percent].” (...)
Nonetheless, it remains one of the most intriguing signals found by Breakthrough Listen—or indeed any SETI program—to date, one that Sheikh compares to the so-called “Wow! signal” detected in 1977, which some believed to be of extraterrestrial origin. “I think it’s on par with the Wow! signal,” she says. More likely than not, however, this is simply some previously unknown source of Earth-based interference. In a few months we’ll likely know for certain one way or another. But for the time being, it’s never aliens … right? “I hate that phrase, because if you say that then why even look,” Wright says. “What we mean by that is that it’s never been aliens before.” (...)
https://www.scientificamerican.com/article/alien-hunters-discover-mysterious-signal-from-proxima-centauri/
Wątek: Breakthrough Listen – nietypowe sygnały (Przeczytany 1693 razy)