Coffee Waste Could Make Concrete Stronger and Greener, Scientists Find

Published

58 mins ago

November 30, 2025

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New research from RMIT University shows that spent coffee grounds can be transformed into biochar and used to replace a portion of sand in concrete, creating a stronger and more sustainable building material. Heating coffee waste at around 350°C without oxygen produces a fine biochar that boosts concrete’s 28-day strength by roughly 30% when used at 15% substitutio…

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Fermi Telescope Detects Gamma-Ray Halo That Could Be First Direct Dark Matter Signal

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15 hours ago

November 29, 2025

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NASA’s Fermi Gamma-ray Space Telescope has detected a faint halo of high-energy gamma rays around the Milky Way’s centre—matching predictions for dark-matter annihilation. The finding, reported by Professor Tomonori Totani, could represent the first direct glimpse of dark matter, but scientists caution that alternative explanations remain and independent confirm…

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Researchers Develop New Materials for Truly Stretchable OLED Screens

Published

17 hours ago

November 29, 2025

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Researchers at the University of Chicago have created new materials that make OLED displays fully stretchable. Their key advance is an aluminium electrode embedded in a gallium–indium alloy, allowing it to “crackle” and self-heal under strain as liquid metal fills emerging gaps. Alongside this, a newly designed stretchy conductive polymer maintains electrical pe…

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Scientists Finally Identify What Drives Venus’s Fast Winds

Published

21 hours ago

November 29, 2025

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A new study has identified the primary force behind Venus’s extreme superrotating atmosphere: a once-per-day thermal tide driven by solar heating. Using data from Venus Express and Akatsuki along with circulation models, researchers show that this daily tide transports most of the momentum that accelerates cloud-top winds to speeds over 100 metres per second. The re…