Tag: black holes
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Melbourne Stargazing: Discover The Night Sky for Adults
Introduction: A stylish, adults-only stargazing night Scienceworks has launched the Melbourne Planetarium’s Discover The Night Sky, a monthly stargazing series designed exclusively for adults. Hosted by renowned astronomer Dr Tanya Hill, the program blends rigorous science education with entertaining storytelling to illuminate the wonders of the night sky. It’s a forward-thinking way to experience astronomy…
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New Approach to Gravitational Wave Detection Opens the Milli-Hz Frontier
A New Frontier in Gravitational Wave Detection Researchers from the Universities of Birmingham and Sussex have unveiled a promising new approach to detecting gravitational waves in the milli-Hertz range. This mid-band, or milli-Hz, frequency region has long eluded observation by existing instruments, leaving a gap between high-frequency ground-based detectors and ultra-low-frequency pulsar timing arrays. The…
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Milli-Hertz frontier: Compact detectors unlock gravitational wave ‘mid-band’
The new mid-band detector idea A collaboration between the Universities of Birmingham and Sussex has unveiled a compact, ground-based detector concept that targets the elusive milli-Hertz gravitational wave band. By combining advanced optical cavity technology with atomic clock references, the project aims to fill the long-standing gap in the gravitational wave spectrum between terrestrial interferometers…
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Black Hole Stars in Galaxy Cores: A New Cosmic Hint
What are black hole stars? A recent study by an international team of astronomers raises the provocative idea that some galaxy centers might host a rare class of objects termed “black hole stars.” In simple terms, these would be compact stellar configurations living in the extreme gravity near supermassive black holes at galactic cores. While…
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Stellar-mass black holes at galactic centers: new hints from distant galaxies
New hints about stellar-mass black holes at galactic centers For decades, astronomers have known that almost every galaxy hosts a supermassive black hole at its core. Now, a growing body of theoretical and observational work suggests there could also be a hidden population of stellar-mass black holes in some galactic centers, particularly in distant galaxies…
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Possible Black-Hole Stars at Galaxy Centers Revealed by New Study
Introduction: a tantalizing hint from the hearts of distant galaxies A new study proposes the existence of a novel class of objects—what researchers are calling black-hole stars—at the centers of some distant galaxies. The claim, based on careful analysis of high-resolution data from modern observatories, suggests that unusual stellar dynamics and compact sources near galactic…
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Potential Smoking Gun Signature Of Supermassive Dark Stars Found In JWST Data
JWST Findings Suggest Dark-Star Candidates in the Early Universe New analyses of data from the James Webb Space Telescope (JWST) point to a striking possibility: some of the first stars in the universe may have been supermassive dark stars—giant, puffed clouds of hydrogen and helium whose light is powered not by fusion, but by tiny…
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Could a Primordial Black Hole Explain the Mysterious Neutrino?
A New Link Between Neutrinos and Primordial Black Holes The KM3NeT Collaboration, a network of neutrino detectors based in the Mediterranean, announced in February that they had detected the highest-energy neutrino yet observed. In a bold interpretation, researchers from MIT have proposed that such an ultrahigh-energy neutrino could be the product of Hawking radiation emitted…
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Giant Stars With Black Holes Inside Them May Have Been Detected For The First Time
The Cliff and the Balmer Break Puzzle Astronomers are rethinking the dawn of galaxies after a series of unusually faint red dots, including a famed object nicknamed The Cliff, showed spectral quirks that challenge traditional explanations. One key feature is the Balmer break, a sharp change in a galaxy’s spectrum caused by hydrogen absorption. In…
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M87* Magnetic Field Flips Reveal Dynamic Cosmic Weather
Overview: A Dynamic Magnetic Field Around a Stable Shadow Using observations from the Event Horizon Telescope (EHT) in 2017, 2018, and 2021, scientists have mapped how the polarization of light around M87* reveals changes in the magnetic field near the black hole’s edge. The results show that while the black hole’s shadow—the dark ring carved…