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From the cosmic dark ages to the dark stars, although the expected signal is weak, successfully observing it could open a new window for testing theories of dark matter when the first stars appeared shortly afterwards during a phase known as the cosmic dawn. Their light likely amplified this radio emission dramatically. from the later era should be easier to detect with ground-based telescopes, although they are harder to introduce in additional complexity. To tackle the challenge, scientists are turning to vast radio telescope networks designed to map subtle variations in cosmic radio intensity. One of the largest efforts is the Square Kilometer Array, or SKA, a global collaboration involving an array of 80,000 radio antennas currently under operation in Australia. Professor Barkana plays a key role in this international project, which aims to capture patterns of strong and weak radio emissions that could reveal where dark matter clumps once existed. A new window into dark matter's origin. The team believes that the predictions may provide an important step forward in understanding dark matter. Today, dark matter is intertwined with galaxies and stars, making its properties difficult to isolate. In contrast, the early universe offers a pristine setting, essentially an untouched laboratory for investigating how dark matter behaves without interference from later cosmic structures. Professor Barkana concludes, just as all radio stations are being replaced with newer technology that brings forth websites and podcasts, astronomers are expanding the reach of radio open a new observational window surprising discoveries usually result. The holy grail of physics is to discover the properties of dark matter, the mysterious subsist that we know constitutes most of the matter in the universe and yet we do not know much about its nature and properties. Understandably, astronomers are eager to start tuning into the cosmic radio channels of the early universe. That's it for the Bulletins for this evening. This is KI0, ARNet Control, Flick, Astronomina.
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