علماء اكتشفوا أن المحيط الجنوبي يطلق كميات أكبر من بخار الماء إلى الغلاف الجوي، ما يُشبه 'التعرق' كآلية تبريد ذاتي. هذه الظاهرة تظهر بوضوح في جزيرة ماكواري بين أستراليا وأنتاركتيكا، حيث زادت كثافة الأمطار بشكل ملحوظ خلال العقود الأخيرة. التغير يشير إلى تسارع غير متوقع في ديناميكيات المحيط الجنوبي، أحد أهم تنظيمات المناخ العالمي.
A remote island between Australia and Antarctica is showing signs of a dramatic climate transformation. Scientists found storms over Macquarie Island now unleash much heavier rainfall than they did decades ago, soaking ecosystems and altering fragile vegetation. The discovery hints that the Southern Ocean — one of Earth’s biggest climate regulators — may be changing faster than expected.
Researchers say the ocean could now be cooling itself by “sweating” more moisture into the atmosphere.
الأبحاث
A groundbreaking superconducting X-ray spectrometer has begun operation at BESSY II, giving Europe its first TES-based system and boosting photon detection efficiency by up to 1,000 times. The advance enables scientists to explore atomically thin materials, nanostructures, and ultra-dilute samples with remarkable speed and sensitivity.
الأبحاث
A new international study finds that middle-aged Americans are lonelier, more depressed, and experiencing worse memory and health than earlier generations. Researchers say growing financial strain, weaker social supports, and chronic stress may explain why the U.S. is falling behind other wealthy nations.
الأبحاث
A groundbreaking new connectome maps every neural connection in an adult fruit fly’s central nervous system, creating an unprecedented view of how the brain and body work together. The findings suggest that complex behaviors emerge from distributed local circuits rather than a single central controller, offering new clues about intelligence, movement, and brain function.