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Phys.org / Archived tree cores reveal why boreal forests are getting starved for nitrogen

Despite decades of industrial deposition, nitrogen availability in the boreal forest is steadily declining. In a new study published in Nature, researchers from the Swedish University of Agricultural Sciences using decades ...

Feb 19, 2026 in Earth
Phys.org / Double white dwarf system detected in a nearby stellar cluster

Using the Very Large Telescope (VLT), astronomers have discovered a compact binary system consisting of two white dwarfs in the center of a nearby globular cluster designated NGC 6397. The finding was presented in a paper ...

Feb 17, 2026 in Astronomy & Space
Phys.org / New chip-scale microcomb uses lithium niobate to generate evenly spaced light

Applied physicists in the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) have discovered a new way to generate ultra-precise, evenly spaced "combs" of laser light on a photonic chip, a breakthrough ...

Feb 19, 2026 in Physics
Medical Xpress / Being physically fit may keep you calm under pressure

Regular exercise is not only good for the body, but it may also help you stay cool under pressure. Research published in the journal Acta Psychologica found that higher cardiorespiratory fitness (CRF) is associated with lower ...

Feb 16, 2026 in Psychology & Psychiatry
Medical Xpress / Mechanism behind immunotherapy resistance in lung cancer identified

Mayo Clinic researchers and collaborators have identified a previously unrecognized way lung tumors weaken the immune system, helping explain why many patients do not respond to immunotherapy and pointing to a potential new ...

Feb 19, 2026 in Oncology & Cancer
Medical Xpress / How blast waves can damage the brain without a head injury

An explosion does not need to strike the head to injure the brain. When a blast occurs, it generates a sudden pressure wave that can pass through the body and skull in milliseconds, potentially deforming brain tissue and ...

Feb 21, 2026 in Neuroscience
Tech Xplore / Social media can be addictive even for adults, but there are ways to cut back

Social media addiction has been compared to casinos, opioids and cigarettes.

Feb 21, 2026 in Internet
Medical Xpress / Kirigami-inspired sensors precisely map activity of neurons in the primate brain

Recent technological advances have opened new exciting possibilities for the development of smart prosthetics, such as artificial limbs, joints or organs that can replace injured, damaged or amputated body parts. These same ...

Feb 18, 2026 in Neuroscience
Phys.org / How your body senses cold—and why menthol feels cool

When you step outside on a winter morning or pop a mint into your mouth, a tiny molecular sensor in your body springs into action, alerting your brain to the sensation of cold. Scientists have now captured the first detailed ...

Feb 21, 2026 in Biology
Phys.org / Ancient cone-shaped vessels may have served as beeswax lamps during ritual processions, study finds

Chalcolithic cornets are conical ceramic vessels produced exclusively during the Chalcolithic period, recovered in abundance at some archaeological sites but absent at others. Their function has long been debated. However, ...

Feb 15, 2026 in Other Sciences
Medical Xpress / Exhaust fans and air purifiers may cut adult asthma flare-ups, study finds

For adults with asthma, having fans, air purifiers or other ventilation and exhaust systems—especially in kitchens and bathrooms—is one of the best ways to reduce the risk of flare-ups at home.

Feb 21, 2026 in Pediatrics
Phys.org / Why some tunes stick: Mathematical symmetry helps explain catchy melodies

Why do some melodies feel instantly right, balanced, memorable and satisfying, even if you have never heard them before? New research from the University of Waterloo suggests that more than creativity is at play.

Feb 19, 2026 in Other Sciences