Key Highlights
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Scientists are expanding the search for life to include Earth-like planets around small stars and deep oceans under ice, suggesting life might be more common than we thought. This means our old methods for estimating the likelihood of alien life need a major update.
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New research shows that stellar-mass black holes inside the disks of active galaxies can drive powerful outflows, which create turbulence that helps move material around. This process could be a key mechanism for explaining how gas flows and feeds the supermassive black holes at the centers of galaxies.
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By simulating a giant impact crater on the metal-rich asteroid Psyche, scientists can test whether it has a solid metal core or is a mixed rock-metal object. The results from these models will be directly compared with data from NASA’s upcoming Psyche mission to finally determine the asteroid’s origin.
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A new study demonstrates that a floating block of ice with an uneven bottom can propel itself through water simply by melting. This surprising mechanism could help explain the unpredictable movements of real icebergs in the ocean.
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Researchers have laid out the mathematical framework for an alternative theory of gravity (STEGR) that does not rely on the curvature of spacetime. This work clarifies the real differences between this theory and Einstein’s general relativity, which could impact future simulations of cosmic events.
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