Key Highlights
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For the first time, astronomers have searched for “exotrojans”—asteroids or planets sharing an orbit with another planet—around distant pulsars, using precise timing data from the NANOGrav project. This pioneering work sets new upper mass limits for such hidden worlds in exotic star systems, pushing the search for Trojan-like bodies beyond our solar system.
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Researchers have created a massive public library of over 1.2 million infrared spectra from 54 Martian meteorites, revealing hidden mineral textures and evidence of past water activity invisible to the naked eye. This detailed spectral map acts as a crucial reference for interpreting data from Mars rovers and orbiters, helping scientists decode the Red Planet’s geological history.
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A new study explores an alternative mathematical formulation of Einstein’s theory of gravity (called STEGR) that explains gravity through the geometry of “nonmetricity” instead of curvature. This work lays the groundwork for new computational methods in numerical relativity, potentially offering fresh insights into simulating complex cosmic events like black hole collisions.
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A superconductor has achieved a record-high critical temperature of 151 Kelvin (about -122°C) while operating at normal room pressure, thanks to a new technique that “quenches” a high-pressure phase. This breakthrough brings practical, energy-loss-free power transmission and advanced medical imaging devices closer to reality by eliminating the need for complex, expensive cooling systems.
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As artificial intelligence rapidly transforms how astronomical data is analyzed, scientists are beginning to grapple with deep philosophical questions about what it truly means to “understand” a discovery made by an AI. This emerging dialogue highlights the need for collaboration between astronomers and philosophers of science to define the nature of knowledge in the age of machine learning.
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