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כתבות אחרונות מאתר 'Phys'
Phys

Image: Curiosity rover surveys boxwork region of Mars‎

NASA's Curiosity Mars rover captured this panorama of boxwork formations—the low ridges seen here with hollows in between them—using its Mastcam on Sept. 26, 2025, the 4,671st Martian day (sol) of the mission. These boxwork formations were created billions of years ago when water leaked through rock cracks. Minerals carried into the cracks later hardened; after eons of windblown sand eroding away the softer rock, the hardened ridges were left exposed.

05:01
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Phys

6 planets will parade across the night sky at the end of February‎

Six planets are linking up in the sky at the end of February, and most will be visible to the naked eye.

05:01
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Phys

Probability underlies much of the modern world—an engineering professor explains how it actually works‎

Probability underpins AI, cryptography and statistics. However, as the philosopher Bertrand Russell said, "Probability is the most important concept in modern science, especially as nobody has the slightest notion what it means."

03:31
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Phys

Staple crops are a major contributor to global deforestation, says study‎

Rice, maize, and cassava crops cumulatively account for approximately 11% of total global deforestation—exceeding that of cocoa, coffee, and rubber—according to an analysis between 2001 and 2022, published in Nature Food. These staple crops should not be overlooked in global efforts to reduce deforestation, the authors argue.

02:15
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Phys

Sunlight-powered process turns plastic waste into acetic acid without added emissions‎

Researchers at the University of Waterloo have discovered a way to turn plastic waste into acetic acid, the main ingredient of vinegar, using sunlight. The breakthrough offers a promising new approach to reducing plastic pollution through photocatalysis, while simultaneously creating a useful, value-added chemical product through a process inspired by nature.

02:15
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Phys

Iron Age massacre targeted women and children, new research reveals‎

New research has revealed that women and children were deliberately targeted in one of the largest prehistoric mass killings discovered in Europe. Archaeological investigations at the Gomolava burial sites in northern Serbia uncovered a grave containing the remains of more than 77 individuals, most of them women and children.

02:15
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Phys

Big broods, better manners: What a fish study suggests about siblings and social skills‎

For many animals, siblings are a key component of their social environment during early life. Previous research has shown that the early social environment is important, but it has not yet been clear whether the number of siblings or the nature of their interactions is the decisive factor. "The early social environment is often treated as a single, uniform factor," says Bruno Camargo dos Santos, behavioral ecologist of Wageningen University & Research and lead author of a new study published in the Proceedings of the National Academy of Sciences. "We wanted to experimentally disentangle what exactly makes the difference."

02:15
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Phys

Multinational companies could drive climate action better than governments‎

With the current U.S. federal administration abandoning its leadership role in the fight against climate change, international efforts by governments to mitigate global warming appear to have stalled, at least for now. But according to Adelina Barbalau, an expert on climate finance in the Alberta School of Business, hope may lie elsewhere—in the global marketplace and the opportunities for multinational companies to pick up the slack.

01:04
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Phys

How natural language processing and AI can help policymakers address global food insecurity‎

NLP offers powerful opportunities to support the UN Sustainable Development Goals (SDGs)—including SDG2 (Zero Hunger). In the wake of the COVID-19 pandemic, the Russia-Ukraine war, mounting climate change impacts, and other crises in the 2020s, global food security has suffered and progress towards meeting SDG2 has lagged. Urgent action, backed by evidence-based policymaking, is needed to reverse this trend.

01:04
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Phys

System isolates single extracellular vesicle surface proteins to map function‎

Extracellular vesicles (EVs) are tiny biological bubbles that carry nucleic acids and proteins between cells, playing an essential role in tissue repair, neuroprotection and immune health. By isolating the surface proteins of these bubbles, researchers can understand more about their biology and build tools to transform extracellular vesicles into next-generation drugs for cancer, neurological conditions and other diseases.

01:04
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