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Resetting the body clock could help the brain recover after stroke
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Resetting the body clock could help the brain recover after stroke

Strengthening the body’s natural daily rhythms helped mice recover after stroke by improving the brain’s waste-clearing system and reducing lingering inflammation. The approach worked even when treatment began three days after the stroke, suggesting circadian-based therapies could eventually offer a new way to support long-term recovery.

📅 2026-09-28 08:35:12    •    ScienceDaily
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Antarctic radar data improves forecasts for Southern Hemisphere atmospheric rivers in tests
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Antarctic radar data improves forecasts for Southern Hemisphere atmospheric rivers in tests

Weather forecasts in the Southern Hemisphere (SH) are generally less accurate than those in the Northern Hemisphere because Antarctica and the surrounding Southern Ocean have relatively few weather observations. With limited information about atmospheric conditions in one of the world's most remote regions, forecasting models often struggle to predict the movement of weather systems. This is especially true for atmospheric rivers that can trigger heavy rain, snowfall, flooding and strong winds across Australia, New Zealand, South America and Antarctica. Improving forecasts of these weather systems is essential for protecting lives and property, supporting aviation and shipping, and helping c...

📅 2026-09-28 07:00:02    •    Phys.org
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New metal-free molecules glow deep red in water and boost MRI contrast in test images
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New metal-free molecules glow deep red in water and boost MRI contrast in test images

Bioimaging technologies, such as fluorescence imaging (FI) and magnetic resonance imaging (MRI), are powerful tools in basic research and clinical medicine. But they have drawbacks. FI allows researchers to visualize cells and other biological processes at high resolution, but it lacks imaging depth. MRI can capture images deep within the body, but it lacks the single-cell resolution provided by FI. Furthermore, MRI contrast agents contain paramagnetic metals, such as gadolinium, that can potentially cause adverse side effects.

📅 2026-09-28 06:00:01    •    Phys.org
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Is the universe infinite? The answer gets weird fast
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Is the universe infinite? The answer gets weird fast

Measurements of ancient light from the cosmic microwave background suggest that the universe is remarkably flat. But that does not prove it is infinite, because the observable cosmos could be only a small patch of a much larger curved universe. Space could even be flat while wrapping around on itself in exotic ways.

📅 2026-09-28 03:18:42    •    ScienceDaily
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Scientists found a surprising driver of Alzheimer’s outside the brain
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Scientists found a surprising driver of Alzheimer’s outside the brain

Scientists found that immune cells contributing to Alzheimer’s-related brain damage may be activated in lymph nodes outside the brain before traveling into the nervous system. Blocking this pathway in mice dramatically reduced neurodegeneration and preserved cognitive abilities, pointing to a potentially more accessible treatment target.

📅 2026-09-28 02:39:28    •    ScienceDaily
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What the smell of a soil can tell us about soil health
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What the smell of a soil can tell us about soil health

Farmers used to sniff their soil to gauge how healthy it was. According to ecologist Rosa Boone, you can deduce a great deal from its smell: "The fungi and bacteria present in the soil are important for soil health and are responsible for the soil's smell." Boone discovered that the smell of soil can be captured and analyzed in the lab, providing insights into these microbial communities. "Monitoring soil life is becoming increasingly important, particularly in view of the forthcoming soil monitoring guidelines. My research shows that there is great potential for developing a sensor—an 'electronic nose'—that could be used to analyze microbial soil life directly, based on how it smells."

📅 2026-09-28 00:30:06    •    Phys.org
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Who is responsible for limiting global warming to 1.5°?
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Who is responsible for limiting global warming to 1.5°?

Even if industry rapidly becomes more sustainable, households will still need to change their lifestyles to meet climate targets. Industrial ecologist Stephanie Cap warns that households cannot do this alone: Businesses and governments must create the conditions to make these changes possible. Cap defends her dissertation titled "Everything Must Change: 1.5°C decarbonisation scenarios across industries and households" on Oct. 1.

📅 2026-09-27 21:00:01    •    Phys.org
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Why volcanic crystals are black boxes for tracking magma's journey to the Earth's surface
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Why volcanic crystals are black boxes for tracking magma's journey to the Earth's surface

When we think of a volcanic eruption, rivers of glowing lava or giant columns of ash come to mind. But beneath Earth's surface, a more complex story is unfolding. Magma deep within volcanoes is more than molten rock. It is a thick mixture of melted rock and solid mineral crystals known as "magma mush". To picture it, imagine a semi-frozen granita: a slushy blend of solid ice crystals suspended in sweet liquid syrup.

📅 2026-09-27 19:00:01    •    Phys.org
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Finding homes for whales and dolphins when parks close isn't easy—sea sanctuaries aren't the answer
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Finding homes for whales and dolphins when parks close isn't easy—sea sanctuaries aren't the answer

When Marineland Canada in Niagara Falls, Ontario, closed in September 2024, it had no regular income to support the care of the 30 belugas and four dolphins housed there. To ensure their welfare, the Association of Zoos and Aquariums led an international effort to relocate the animals to the United States and Spain.

📅 2026-09-27 18:00:06    •    Phys.org
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Soil protection measures can make agri-photovoltaics more sustainable
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Soil protection measures can make agri-photovoltaics more sustainable

Agri-photovoltaics combines electricity generation and agriculture on the same land—to ensure this works well in the long term, it is worth taking a closer look at the soil. Researchers at the Leibniz Centre for Agricultural Landscape Research (ZALF) have, for the first time, measured how the construction phase of agri-photovoltaic installations affects soil structure.

📅 2026-09-27 17:00:01    •    Phys.org
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More moral language doesn't always mean more engagement online
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More moral language doesn't always mean more engagement online

Moral language—words and phrases that express ideas about right and wrong, virtues, fairness, harm and social obligations—is widely used in social media posts and other online content. Posts containing moral language sometimes spread quickly and attract a lot of attention on social media, yet whether moral language is always linked to greater user engagement remains unclear.

📅 2026-09-27 16:10:01    •    Phys.org
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Waste bulrush transformed into copper-enhanced material for dye removal from wastewater
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Waste bulrush transformed into copper-enhanced material for dye removal from wastewater

Industrial activities such as textile manufacturing, paper production, leather processing and food processing can generate wastewater containing synthetic dyes. Because many synthetic dyes are chemically stable, difficult to biodegrade and environmentally persistent, their release into waterways can pose risks to aquatic ecosystems and human health.

📅 2026-09-27 14:30:05    •    Phys.org
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Astronomers discover a radio galaxy with evidence of four separate jet outbursts
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Astronomers discover a radio galaxy with evidence of four separate jet outbursts

Astronomers have identified what may be the first example of a new class of radio galaxy, one whose central black hole appears to have launched powerful jets on four separate occasions. High-resolution observations with the upgraded Giant Metrewave Radio Telescope (GMRT), combined with data from MeerKAT and the Very Large Array, reveal four pairs of radio structures arranged symmetrically around the central galaxy.

📅 2026-09-27 14:20:05    •    Phys.org
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Glucosamine, a popular joint supplement, linked to faster Alzheimer’s progression
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Glucosamine, a popular joint supplement, linked to faster Alzheimer’s progression

A large health-record analysis found that glucosamine use was associated with a 25% higher likelihood of mild cognitive impairment progressing to dementia. Lab experiments suggest the popular joint supplement may intensify an abnormal sugar-tagging process in the Alzheimer’s brain, although researchers say clinical trials are needed to determine whether it actually causes harm.

📅 2026-09-27 13:53:39    •    ScienceDaily
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DNA reveals chemosynthesis genes in bacteria living on coral reef fish gills
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DNA reveals chemosynthesis genes in bacteria living on coral reef fish gills

Chemosynthetic bacteria have been documented in various marine environments and in association with invertebrate hosts such as annelid worms and mollusks, but their presence in fish appears to be a new discovery. The findings show that fish gills host a complex and specialized microbiome that is not yet well understood but could play an important role in fish metabolism, immunity and health.

📅 2026-09-27 12:00:05    •    Phys.org
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