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Medical Xpress / Semaglutide may increase risk for nonarteritic anterior ischemic optic neuropathy

People with type 2 diabetes starting semaglutide have more than a doubled risk for nonarteritic anterior ischemic optic neuropathy (NAION) versus those starting sodium-glucose cotransporter-2 inhibitors (SGLT2is), according ...

1 hour ago in Overweight & Obesity
Phys.org / 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 ...

20 minutes ago in Astronomy & Space
Phys.org / Hair-width LEDs could eventually replace lasers

LEDs no wider than a human hair could soon take on work traditionally handled by lasers, from moving data inside server racks to powering next-generation displays. New research co-authored by UC Santa Barbara doctoral student ...

2 hours ago in Physics
Phys.org / Jupiter's Galilean moons may have gained life's building blocks at birth

Southwest Research Institute was part of an international team that demonstrated how complex organic molecules (COMs), key chemical precursors to life, could have been incorporated into Jupiter's Galilean moons during their ...

2 hours ago in Astronomy & Space
Phys.org / Tuning in to fluorescence to farm smarter: Monitoring plant light use saves indoor farm energy costs

Plant owners with a so-called green thumb often seem to have a more finely tuned sense of what their plants need than the rest of us. A new "smart lighting" system for indoor vertical farms grants this ability on a facility-wide ...

2 hours ago in Biology
Phys.org / A new form of aluminum unlocks sustainable and cheaper catalysts

A research team at King's College London has isolated a new form of aluminum—a highly abundant metal, that could provide a far cheaper and more sustainable alternative to commonly used rare earth metals. Dr. Clare Bakewell, ...

3 hours ago in Chemistry
Medical Xpress / New 'liver-on-a-chip' device could make drug safety testing more reliable

Creating a drug that might help treat or cure a health condition in humans is a long, complex process. After developing a candidate drug that shows potential—a process that, in and of itself, can take decades—scientists ...

2 hours ago in Biomedical technology
Phys.org / 40,000-year-old Stone Age symbols may have paved the way for writing, long before Mesopotamia

Over 40,000 years ago, our early ancestors were already carving signs into tools and sculptures. According to a new analysis by linguist Christian Bentz at Saarland University and archaeologist Ewa Dutkiewicz at the Museum ...

6 hours ago in Other Sciences
Medical Xpress / Rare genetic variant protects against malaria-causing parasite by making red blood cells bigger

Scientists have found that a special component in some people's blood provides them with natural protection against malaria. A recent study has demonstrated that a genetic variant named rs112233623-T reduces the activity ...

5 hours ago in Immunology
Phys.org / Alloy-engineered valleytronics: Microscopic mechanism gives scientists precise control over how excitons behave

Scientists have observed a new microscopic mechanism enabling precise control of the magneto-optical properties of excitons in alloys of two-dimensional semiconductors. This discovery opens up tangible prospects for technological ...

3 hours ago in Physics
Phys.org / 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 ...

2 hours ago in Nanotechnology
Phys.org / Early-life challenges and experiences shape how boldly bats behave as adults

What makes one bat take risks and venture far from its roost in search of food, while another stays close to familiar, safer areas? A new study from Tel Aviv University's School of Zoology reveals that the environment in ...

3 hours ago in Biology