Tag: universe
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Dark Matter and Ghost Particles: A Potential Breakthrough in Cosmology
A Possible Intersection of the Invisible: Dark Matter and Ghost Particles Scientists are edging toward what some researchers describe as a fundamental breakthrough in cosmology and particle physics. The idea is both audacious and tantalizing: dark matter, the unseen mass that shapes galaxies, might interact with so‑called ghost particles—often associated with sterile neutrinos or other…
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Hot Dark Matter: Could Refine Our Cosmic Evolution
Rethinking the Universe’s Silent Architect Dark matter has long stood as a silent scaffolding for the cosmos, an unseen substance that helps gravity pull galaxies into place. The prevailing Lambda Cold Dark Matter (ΛCDM) model rests on the idea that dark matter is cold — moving slowly and clustering on small scales. But fresh research…
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Hot Dark Matter: Refining Cosmic Evolution in the Universe
New clues about the universe’s hidden matter For decades, scientists have grappled with the enigma of dark matter—the unseen substance that makes up about a quarter of the universe’s mass-energy. A new thread in this ongoing exploration suggests that dark matter may have been born as “hot” in the early universe. If confirmed, this idea…
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Unveiling the Universe’s Secrets: Dark Matter & Energy
Introduction: A Sliver of the Cosmos, A Quest for the Whole Picture When we peer into the night sky, the visible stars and galaxies feel like a complete map. Yet modern cosmology tells a different story: the ordinary matter that forms planets, oceans, and life accounts for only a fraction of the universe. The vast…
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Scientists Edge Closer to Unveiling the Universe’s Secrets
Chasing the Unknown: Why the Universe Still Surprises Us When scientists look up at the night sky, they are studying a tapestry that is only partly visible. Dark matter and dark energy together constitute about 95% of the cosmos, meaning the familiar atoms and molecules we encounter daily make up a small fraction of the…
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Where Normal Matter Really Lives in the Universe: The Cosmic Baryon Census
Beyond the Bright Objects: The Hidden Home of Normal Matter When we gaze at the night sky, we see stars, planets, and distant galaxies. But normal matter—the stuff that makes up stars, planets, people, and everything we know—accounts for only a small fraction of the universe’s total mass-energy. The bulk of ordinary matter is not…
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SPHEREx Completes Its First All-Sky Map: A New Era for Cosmic Discovery
NASA’s SPHEREx: A Milestone in Cosmic Cartography In a bold leap for space science, NASA’s SPHEREx telescope has completed its first map of the entire sky, captured from Earth’s vantage point. This achievement marks not just a technical triumph but a promising gateway to new discoveries about the universe’s origin, structure, and evolution. Since its…
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Best Observation of Black Hole Mergers Achieved
Introduction to Black Hole Mergers The merging of two black holes is one of the most extraordinary phenomena in the universe. This cataclysmic event not only displays the wildest configurations of space and time but also challenges our understanding of gravity. Recently, researchers have made significant strides in observing such events, providing deeper insights into…