Tag: stellar evolution
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Betelgeuse’s Secret Companion Finally Revealed: Meet Betelbuddy
Lonely Giant No More: Betelgeuse Has a Companionship Secret Betelgeuse, the brilliant red supergiant marking Orion’s shoulder, has long captured the imagination of skywatchers. For decades, it has also intrigued scientists who suspected that this colossal star might not be alone. After years of careful observation and a rare window of opportunity, researchers from Carnegie…
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Betelgeuse’s Secret Companion Revealed: Betelbuddy Confirmed
Introduction: A Debut Night in the Cosmos Betelgeuse, the brilliant red supergiant marking Orion’s shoulder, has long captured the imagination of stargazers and scientists alike. For decades, hints of a hidden partner have tantalized researchers, inviting questions about how such a massive star could live in relative solitude. This year, researchers from Carnegie Mellon University…
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Largest catalog of black hole mergers to date is released
Overview: A sweeping update from the gravitational-wave community An international network of observatories has released version 4.0 of its catalog, listing 128 new black hole merger candidates detected during the first phase of the fourth observing run, O4a. This milestone expands the catalog of gravity-echo events captured as ripples in space and time, demonstrating how…
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GWTC 4.0: The Largest Black Hole Merger Catalog to Date
Introduction: A New Milestone in Gravitational-Wave Astronomy International networks of gravitational-wave observatories have released version 4.0 of their catalog, listing 128 new black hole merger candidates detected during the first phase of the fourth observing run, O4a. This update marks the largest catalog of black hole mergers assembled to date and highlights how gravity-based listening…
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GWTC 4.0: The Largest Catalog of Black Hole Mergers Yet Expands Our View of the Cosmos
Overview: A New Milestone in Gravitational-Wave Astronomy The international network of gravitational-wave detectors has released version 4.0 of its catalog, GWTC 4.0, documenting 128 new black hole merger candidates from the first phase of the fourth observing run, known as O4a. This milestone not only broadens the inventory of cosmic collisions but also strengthens the…
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Mysterious Sea Hint of Nearby Supernova: Could a 10-Million-Year-Old Explosion Have Shaped Earth?
The Mystery on the Pacific Seafloor Scientists have long hunted for signatures of past cosmic events that might have influenced life on Earth. This year, a German team reported an unusual spike in beryllium-10, a radioactive isotope created when cosmic rays hit Earth’s atmosphere, in Pacific Ocean sediments. The anomaly stands out because, while beryllium-10…
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Cosmic Baboon Nebula: A Stunning Deep-Space Portrait of a Rampaging Simian
Introduction: A celestial portrait with a primate’s gaze A new nebula image is turning heads in the astronomy community and among space enthusiasts: a star-studded scene that resembles a colossal baboon raging through the depths of space. Captured by astrophotographer Greg Meyer, this cosmic portrayal blends intricate dust clouds, glowing gas, and distant starlight into…
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Hubble Delivers Stunning N11 View from the Large Magellanic Cloud
Hubble’s October 7, 2025 Spotlight: A Cosmic Snapshot of N11 On October 7, 2025, the Hubble Space Telescope offered the astronomy community and the public a compelling glimpse into one of the Large Magellanic Cloud’s most active star-forming regions: N11. This image is more than a pretty picture. It’s a window into how stars are…