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Satellite data reveal Southern Ocean vertical currents diving 3,000 feet below surface
June 9, 2026 report Satellite data reveal Southern Ocean vertical currents diving 3,000 feet below surface Paul Arnold Author Lisa Lock Scientific Editor Robert Egan Associate Editor Ocean currents are not just horizontal motions that flow from side to side. There are also vertical currents that act like deep-sea elevators, pushing heat and carbon down into the deep, while bringing up vital nutrients and dissolved gases to the surface. Our knowledge of these vertical movements has been...
Leveraged ETF assets double in two months as investors press AI bet
Assets in leveraged ETF nearly doubled over two months, as investors scrambled for maximum exposure to the artificial intelligence trend. "Investors increasingly use leveraged instruments linked to the 'AI-trade' – assets in leveraged ETFs linked to AI and Tech themes have surged, with exposures in the US and Korea/Taiwan rising sharply- more than doubling in recent months," wrote Goldman's Christian Mueller-Glissmann in a note. Goldman cited data from EPFR tracking 573 leveraged U.S. equity...
Two new aquatic insect species discovered from the Middle East and Caucasus
Two new aquatic insect species discovered from the Middle East and Caucasus Sadie Harley Scientific Editor Robert Egan Associate Editor Newly described aquatic insects, belonging to the genus Hydropsyche, are helping close substantial knowledge gaps regarding the biodiversity of Azerbaijan, Iran, and Türkiye. Caddisflies (order Trichoptera) are vital components of freshwater ecosystems, and the Hydropsyche genus is among the most diverse and ecologically important, comprising more than 8% of...
Unlearning Isn't Invisible: Detecting Unlearning Traces in LLMs from Model Outputs
arXiv:2506.14003v5 Announce Type: replace Abstract: Machine unlearning (MU) for large language models (LLMs), commonly referred to as LLM unlearning, seeks to remove specific undesirable data or knowledge from a trained model, while maintaining its performance on standard tasks. While unlearning plays a vital role in protecting data privacy, enforcing copyright, and mitigating sociotechnical harms in LLMs, we identify a new vulnerability post-unlearning: unlearning trace detection. We...
Cross-Domain Dead Tree Detection via Knowledge Distillation in Aerial Imagery
arXiv:2606.02303v1 Announce Type: new Abstract: Detecting dead trees in aerial imagery is vital for assessing forest health, especially as tree mortality increases globally due to climate change, but domain variability and scarce labeled data often limit model generalization. This study advances the TreeMort-1T-UNet (Tree Mortality 1-Task U-Net) model, initially trained on Finnish aerial imagery (source domain), by applying knowledge distillation (KD) to adapt it to various target domains,...
Understanding how things connect helps people invent, 1,200-player experiment suggests
Understanding how things connect helps people invent, 1,200-player experiment suggests Lisa Lock Scientific Editor Robert Egan Associate Editor Our capacity for innovation, rather than being the work of random variation, is based on an intrinsic understanding of how the world works, claim Karolinska Institutet and Vrije Universiteit Amsterdam researchers in a new study published in the Proceedings of the National Academy of Sciences. What is it that makes humans so good at creating new ideas...
Fifty-year protein mystery breaks open as acid-driven water loss comes into view
Fifty-year protein mystery breaks open as acid-driven water loss comes into view Sadie Harley Scientific Editor Robert Egan Associate Editor Proteins systematically lose their protective hydration shell when their environment becomes more acidic. Until recently, this was just a theory. State-of-the-art imaging techniques have helped researchers at Martin Luther University Halle-Wittenberg (MLU) directly observe this process for the first time at the level of the individual water molecule.
What's the deepest cave in the world?
What's the deepest cave in the world? There are two contenders for the world's deepest cave, and they're in the same mountain range. Caves pockmark the world, extending deep into the bowels of Earth.
British husband and wife murdered and bodies fed to crocodiles by ISIS-linked gang
British husband and wife murdered and bodies fed to crocodiles by ISIS-linked gang Rod Saunders, 74, and wife Rachel, 63, were ambushed in South Africa by a gang linked to ISIS, before they were stabbed and their bodies thrown to crocodiles An ISIS-linked gang who stabbed and battered a British couple to death before feeding their bodies to crocodiles in South Africa have been found guilty of their murder. World renowned botanists Rod Saunders, 74, and wife Rachel, 63, were ambushed whilst...
How positive tipping points may be the key to protecting tropical rainforests
How positive tipping points may be the key to protecting tropical rainforests Gaby Clark Scientific Editor Andrew Zinin Lead Editor The world's tropical rainforests are edging towards collapse. But knowing how to stop deforestation isn't enough to drive action. The challenge is aligning all the pieces of the puzzle to initiate substantial change.