Key Highlights
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Astronomers have discovered two star clusters forming within a high-speed gas cloud, known as Complex H, that is falling into our galaxy. This provides the first direct evidence that stars can be born in these fast-moving circumgalactic clouds, challenging previous ideas about where star formation can occur.
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A new study uses a specific type of “tanh f(R)” gravity to explain the universe’s accelerating expansion, combining data from the latest DESI survey, supernovae, and the conditions of the Big Bang. This work tests alternative theories of gravity against the standard model, helping to pin down the true nature of dark energy.
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Researchers have demonstrated a “Feynman paradox” in a spherical topological insulator, where a static electric field can store hidden angular momentum. By moving a charged object near the sphere, this stored angular momentum is converted into a physical rotation, providing a real-world test of a classic physics thought experiment.
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A large ALMA telescope survey of hot, dense star-forming cores has identified a specific type of methanol emission as a reliable signpost for chemical complexity. This finding gives astronomers a powerful new tool to pinpoint the birthplaces of massive stars and the rich organic chemistry that precedes planet formation.
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Scientists have simulated a giant impact on the metal-rich asteroid Psyche to see if it behaves like a solid chunk of metal or a differentiated body with a core. The results will help interpret data from NASA’s upcoming Psyche mission, aiming to solve the mystery of whether this asteroid is the exposed core of an ancient planet.
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