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    A GROUP of rarely observed radio objects have been spotted out in a distant galaxy cluster which has left scientists scratching their heads. The objects in question include a radio relic, a radio halo, and fossil radio emission. 1Galaxy cluster Abell 3266, where the strange discovery was madeCredit: Christopher Riseley But why is it significant? Well, it defies existing theories about the origins of such objects, as well as their characteristics. The strange discovery was spotted within a galaxy cluster known officially as Abell 3266. It's situated a whooping 800 million light-years away, stretching across 300 million light-years of sky in the southern constellation of Reticulum. There are actually loads of galactic clusters out there, but the galaxies only really represent a small amount of what's in them. About 80 percent is dark matter. A group of scientists combined their findings to form a striking image, but noticed some bits weren't quite right. For example, the relic takes on an unusual concave shape that's not been seen before. Most read in TechHONEY I SHRUNK THE DAY Earth records shortest day...
    HUMANITY has reached a point of innovation where we can see into distant galaxies, but can’t always explain what’s happening in our observations. But a mystery from 2019 may have found its resolution thanks to researchers working on data obtained from South Africa’s MeerKAT telescope. 2Glowing 'space blobs' like this have been confusing scientists for yearsCredit: YouTube 2The orbs are called 'odd radio circles'Credit: YouTube Ray Norris, a professor at Western Sydney University, and his colleagues were so baffled by “glowing rings” spotted in deep space that they were unsure of what to call them–and that uncertainty made it into the official name.  Odd radio circles (or ORCs) are now thought to be an eggshell of radio waves that we can map against the backdrop of space. They appear to have rings oscillating around the orb because the edges hold "more material along the line of sight, much like a soap bubble." Located about a billion light years away, the ORCs must be massive for us to spot them - even with fantastic telescoping equipment. Read More in Space and...
    (CNN)Some 4.4 million space objects billions of light-years away have been mapped by astronomers, including 1 million space objects that hadn't been spotted before. Weird space triangle captured by Hubble Space TelescopeThe vast majority of these objects are galaxies that harbor massive black holes or rapidly growing new stars. Other discoveries include colliding groups of distant galaxies and flaring stars, which vary in brightness, within the Milky Way, according to a news statement from Durham University in England. The observations were made by analyzing a huge amount of data from the sensitive Low Frequency Array telescope, known as LOFAR, which is using low radio frequencies to observe about a quarter of the Northern Hemisphere's sky and catalog it in fine detail. It's operated by ASTRON, the Netherlands Institute for Radio Astronomy.Unlocking secrets of the universeThis batch of data is the second from the LOFAR sky survey to be made public and covers 13 times the area of the first release, which logged the radio signals of almost 300,000 galaxies and other space objects. Read MoreRadio astronomy is another way of...
    At some point in your life, you’ve probably used a combination of sight and touch to find something hidden beneath your couch cushions. And for a while now, robotics researchers have tried to give their creations that same capability. Back in 2019, a team of scientists from the Massachusetts Institute of Technology (MIT) used a combination of tactile sensors and AI to allow a robot to identify objects by touch.  A separate group of scientists from MIT has now built a machine that can find things it can’t see initially. The aptly named RF Grasp depends on a wrist-mounted camera and an RF reader to hone in and pick up an object. As long an item has an RF tag on it, the robot can find it, even if it’s hidden behind things like wrapping paper. i This content is not available due to your privacy preferences. Update your settings here to see it. Unlike your typical university robotics project, there’s a clear use case for this invention too. The team sees RF Grasp helping companies like Amazon further...
    Have been discovered two giant radio galaxies with the powerful MeerKAT telescope in South Africa, considered among the largest individual objects in the universe. While normal radio galaxies are quite common, only a few hundred of them have radius jets that exceed 700 kiloparsecs in size, or around 22 times the size of the Milky Way. These truly huge systems are called “giant radio galaxies.” In spite of the shortage of giant radio galaxies, the authors found two of these “cosmic beasts” in a remarkably small patch of sky, as published in Monthly Notices of the Royal Astronomical Society. Dr. Jacinta Delhaize, a researcher at the University of Cape Town and the main author of the work, explains in a statement that “we found these giant radio galaxies in a sky region which is only approximately 4 times the area of ​​the full Moon. According to our current knowledge of the density of giant radio galaxies in the sky, the probability of finding two of them in this region is less than 0.0003%. This means that giant radio galaxies...
    A FAMED Harvard scientist has called for Nasa to send spacecraft to hunt for alien probes. Astrophysicist Avi Loeb has said we shouldn't just be focusing on mysterious radio signals in the hunt for alien life but also looking for unusual space objects. 2Loeb has written a new paper about the hunt for alien lifeCredit: Image Bank - Getty Loeb proposes in a new essay for Scientific American that there could be objects in our Solar System that are like a "message in a bottle" from alien life. The scientist thinks space agencies should be launching space probes to “search for technological civilizations across interstellar distances”. He also thinks we should use probes to observe objects that drift into our Solar System. One such object is Oumuamua, an unusual space rock that Loeb has argued could be a probe sent by aliens. 2The 'comet' Oumuamua was the first interstellar objected to be observed passing through the Solar SystemCredit: Getty - Contributor Oumuamua took the world by storm in October 2017 when it was identified as the first known visitor from another star system....
    Astronomers are baffled about four objects that were noticed in deep place by  massive radio telescopes, stories said. LiveScience.com reported on Thursday that the really circular objects that appear bright alongside the edges were identified when astronomers reviewed archival details from radio telescopes in Australia and India. Seem UP IN THE SKY: COMET IS VISIBLE  Kristine Spekkens, an astronomer from the Royal Navy Faculty of Canada and Queen’s University, advised the science site that the objects surface to be something not but probed. “It may well also be that these are an extension of earlier recognized course of objects that we haven’t been in a position to investigate,” she stated. Scientists have referred to the objects as ORCs, or “odd radio circles.” The Australian astronomers in the study noted that the objects were being uncovered although functioning on the Evolutionary Map of the Universe Pilot, an all-sky continuum survey, using a sq. kilometer array pathfinder telescope. The objects were being explained as round, “edge-brightened discs.” They do not “correspond to any acknowledged sort of item.” Two of them are rather shut...
    Astronomers are baffled about four objects that were spotted in deep space by a massive radio telescopes, reports said. LiveScience.com reported on Thursday that the highly circular objects that appear bright along the edges were discovered when astronomers reviewed archival data from radio telescopes in Australia and India. LOOK UP IN THE SKY: COMET IS VISIBLE  Kristine Spekkens, an astronomer from the Royal Military College of Canada and Queen’s University, told the science website that the objects appear to be something not yet probed. “It may also be that these are an extension of previously known class of objects that we haven’t been able to explore,” she said. Scientists have referred to the objects as ORCs, or “odd radio circles.” The Australian astronomers in the study noted that the objects were found while working on the Evolutionary Map of the Universe Pilot, an all-sky continuum survey, using a square kilometer array pathfinder telescope. The objects were described as circular, “edge-brightened discs.” They do not “correspond to any known type of object.” Two of them are relatively close together, which...
    Australian astronomers have detected a series of inexplicable signals that they believe could be “a new class of astronomical object.” A team of international researchers at the Australian Square Kilometre Array Pathfinder (ASKAP), in the continent’s Western region, has dubbed the objects “odd radio circles,” or ORCs. Led by astrophysicist Ray Norris of Western Sydney University, the scientists shared their findings on arXiv, an open-access scholarly articles archive, while their report awaits peer review for publication into the journal Nature Astronomy. Their study describe four ORCs, which appear as glowing orbs, three of which have distinct, bright rings around the circular object — and ruled out several possible explanations for their existence. “Circular features are well-known in radio astronomical images, and usually represent a spherical object such as a supernova remnant, a planetary nebula, a circumstellar shell, or a face-on disc such as a protoplanetary disc or a star-forming galaxy,” they wrote in their report. “They may also arise from imaging [artifacts] around bright sources caused by calibration errors or inadequate deconvolution. Here we report the discovery of a class...
    STRANGE circles of radio signals have appeared in space, leaving scientists scratching their heads. The mysterious blobs of energy were spotted using a giant radio telescope in Australia and are unlike anything astronomers have seen before. 2Strange circles of radio signals have been spotted in deep space An international team of researchers describe four of the faint objects in a new scientific paper, naming the oddities "Odd Radio Circles" (ORCs). Each ORC is a highly circular collection of radio waves that are brighter along their edges. "Here we report the discovery of a class of circular feature in radio images that do not seem to correspond to any known types of object or artefact," scientists wrote in their paper, which was posted to arXiv. "They appear to be a new class of astronomical object." 2Scientists say the blobs of radio waves are unlike anything astronomers have seen beforeCredit: Alamy Experts identified the ORCs using the Australian Square Kilometre Array Pathfinder, one of the world's most sensitive radio telescopes. They were actually looking through data for a different study when they...
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