A mysterious source has been sending radio signals to Earth from space for decades
An unknown source has been sending radio blasts towards Earth since at least 1988, scientists say. The researchers do not know what object is sending the radio waves towards Earth. The nature of the waves is such that they do not conform with any models that attempt to explain it. For 35 years, the source has been sending out regular 20-minute blasts of energy that vary considerably in their brightness, researchers say. The emissions appear something like the blasts that come out of pulsars or fast radio bursts, which last for milliseconds to several seconds. But the newly discovered source sends radio signals that pulsate on a period of 21 minutes – something previously thought impossible by expected explanations. Pulsars are neutron stars that spin around quickly, throwing out radio blasts as they do. When one crosses Earth, the emissions can be picked up very briefly and brightly, like being in the path of the light from a rotating lighthouse. Scientists believe that process can only work if the magnetic field of the pulsar is strong, and it is rotating quickly enough – if not, there would not be enough energy to see the pulsar from Earth. That has led to the development of the “pulsar death line”, which suggests that sources must be spinning fast and strong enough to be detected. The newly discovered object named GPMJ1839-10, however, is way beyond that death line. If it is a pulsar, then it seems to be operating in ways that scientists thought impossible. It could also be a highly magnetised white dwarf or magnetar, an extra kind of neutron star with incredibly strong magnetic fields. But they do not tend to send out emissions of this kind, researchers believe. The signals have been detected on Earth since at least 1988, scientists found by going through old records, but they had gone unnoticed by those collecting that data. After the source was detected, researchers checked radio archives and found that the source has been repeating for at least 35 years. Yet more discoveries may be made in this way in the future, said Victoria M Kaspi, a professor of physics at McGill University who did not work on the study. “Only time will tell what else lurks in these data, and what observations across many astronomical timescales will reveal,” she wrote in an accompanying article. That might include some explanation of how unusual the newly discovered source is. By examining whether there are is a similar collection of other objects in the data, researchers might be able to understand the mechanisms behind the newly discovered emissions. The findings are reported in a new paper, ‘A long-period radio transient active for three decades’, published in the journal Nature. Read More Scientists invent self-healing solar panels with ‘miracle material’ Powerful solar flare to disrupt communications, Russians warn New technique represents major breakthrough in search for aliens, scientists say
2023-07-19 23:59
Wesleyan University: Top US college says it will end 'legacy' admissions
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Overwatch League Faces Uncertain Future Amid Activision Blizzard Layoffs
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US SEC accepts six spot bitcoin ETF proposals for review
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Study finds that UK has more crop circles than anywhere else
Researchers have revealed where in the UK has the most crop circles, in a significant victory for fans of chasing potential alien hotspots. The mysterious crop circle phenomenon is often attributed to unidentified flying object landings or other paranormal forces, with wannabe alien hunters travelling from far and wide to study the markings when they appear. According to Bonusfinder and ukcropcircles.co.uk, the southwestern county of Wiltshire has seen by far the most crop circles since 2005, with a whopping 380 instances of the strange event. Sign up to our free Indy100 weekly newsletter Hampshire was a distant second, with just 51 crop circles in the same period, followed by Oxfordshire with 35 crop circles. Monique Klinkenbergh, researcher and founder of the Crop Circle Visitor Centre and Exhibition, said the county’s sprawling landscape and relatively undisturbed countryside could be part of the reason for the flurry of potential extraterrestrial activity. “Crop circles seem to be attracted by ancient sites such as stone circles, long barrows, hill forts and other archaeological sites, for which Wiltshire is famous,” she said. “We have had so many different designs appearing, from small simple circles and ‘pictograms’ to extremely intricate and large patterns, sometimes with a very detailed and complex lay [the way the plants are flattened] on the ground. “Some crop circle patterns are familiar in design, suggesting they belong to a certain ‘school’ or ‘family-type’, such as Mathematical, Forms of Life, Religious, Astronomical, Codes and Mythology.” Klinkenbergh said invisible “Earth energies” are believed by some to run through ancient landmarks. That could be why the home of Stonehenge has so many crop circles, she said. However, she admitted that another far more mundane explanation could be at the heart of it: that they are manmade. Who would’ve thought it, eh? Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.
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