Tag: structure formation
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Dark Matter’s Earliest Moments May Have Been Far More Extreme Than We Thought
Unraveling the Dark Matter Dawn Dark matter accounts for roughly 85% of the matter in the universe, yet its nature remains one of the most enduring mysteries in cosmology. Recent theoretical and observational work hints that dark matter’s earliest moments—moments shortly after the Big Bang—may have been far more extreme than scientists previously imagined. If…
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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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Dark matter acts surprisingly normal in a new cosmic test
Introduction: A surprising alignment with the known forces For decades, scientists have wrestled with the question of whether dark matter—an invisible substance that makes up most of the matter in the universe—responds to the same fundamental forces as ordinary matter. The traditional view has been simple: dark matter interacts primarily through gravity, with little to…