Phys.org
Rapidly melting Antarctic ice shelves may cause global sea levels to rise far faster than expected
Antarctic ice shelves are melting from below at rates far exceeding prior projections, according to new research published in Nature Communications. The accelerated melt is driven by warming ocean temperatures eating away at the ice's underside, destabilizing the shelves that hold back vast glaciers. If the trend continues, coastal communities worldwide could face a significantly more urgent sea level threat than current models suggest.
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Scientists accidentally discover DNA that breaks the rules of life
A microscopic pond organism has been found encoding its DNA with a genetic code that defies the near-universal rules governing how genes function across all known life. Discovered accidentally during routine single-cell sequencing work, the protist uses an entirely different system for signaling the end of genes during translation. The finding forces a rethink of one of biology's most foundational assumptions and suggests nature has more room for experimentation than previously thought.
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Scientists reverse diabetes in mice with lab-grown insulin cells
Lab-grown insulin-producing cells developed by Swedish scientists successfully restored blood sugar control in diabetic mice after transplantation. The cells, derived from human stem cells, demonstrated strong glucose response — a key hurdle that has long complicated efforts to replicate natural pancreatic function. If the results translate to humans, the approach could represent a meaningful step toward a functional cure for type 1 diabetes.
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NASA just tested a powerful new thruster that could send humans to Mars
NASA's experimental electromagnetic thruster hit record-breaking power levels in a recent test at the Jet Propulsion Laboratory, running on lithium vapor and intense magnetic forces at temperatures exceeding molten lava. The milestone marks a significant leap beyond the capabilities of any propulsion system currently operating in space. If development continues on this trajectory, the technology could dramatically cut travel times on deep-space missions, including crewed trips to Mars.
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