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Scientists discover a major brain shift between ages 50 and 75
Science News

Scientists discover a major brain shift between ages 50 and 75

Scientists have uncovered sweeping changes in how the human brain controls and organizes its genome beginning in midlife, offering new clues to why aging sharply increases the risk of Alzheimer’s and other neurodegenerative diseases. One of the biggest shifts occurred between about ages 50 and 75, when many of the brain’s original immune cells declined and were replaced by cells with more inflammatory characteristics. Researchers also found weakening of cells that help maintain the blood-brain barrier, along with widespread deterioration in the genome’s three-dimensional organization.

📅 2026-09-15 14:28:38    •    ScienceDaily
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Fossils of iconic long-necked dinosaur Diplodocus found in Europe for first time — and it may have traveled there via land bridge
Science News

Fossils of iconic long-necked dinosaur Diplodocus found in Europe for first time — and it may have traveled there via land bridge

Paleontologists have identified the first confirmed remains of Diplodocus — "Dippy," for short — outside the western U.S., revealing that the iconic long-necked dinosaur reached what is now Spain roughly 150 million years ago. The findings show that the enormous sauropod didn't live only in North America, as was long thought. Instead, it may have rambled across a land bridge all the way to Europe, the new study suggests.The discovery, made at the La Tejería site near the small village of El Castellar in eastern Spain, provides some of the strongest fossil evidence yet that dinosaurs could move between North America and Europe during the Late Jurassic, when the Atlantic Ocean was still in its...

📅 2026-09-15 14:11:51    •    Live Science
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Supermassive black hole winds are 100 times more powerful than scientists thought
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Supermassive black hole winds are 100 times more powerful than scientists thought

Astronomers have discovered that winds from a supermassive black hole are about 100 times more powerful than previously thought. XRISM observations showed the resulting turbulence spreading roughly 300,000 light-years, extending far beyond the black hole’s host galaxy. The energy involved rivals several billion supernova explosions, revealing just how dramatically black holes can influence the space around them.

📅 2026-09-15 12:33:50    •    ScienceDaily
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'That could push them over the edge': How climate change could fuel impulsive behavior
Science News

'That could push them over the edge': How climate change could fuel impulsive behavior

Climate change is often discussed in terms of rising temperatures, extreme weather and environmental loss. But there's another consequence that can be harder to see: The impact on our mental health.In this exclusive video, we explore how heat exposure influences mental state, drawing on research by Kim Meidenbauer, a neuroscientist at Washington State University who studies the effect of heat on emotion and behavior.Editor's Note: This text was updated at 12:30 p.m. EDT to correct the spelling of Kim Meidenbauer's name.Burning up: How can we adapt to a warming world?As the planet warms, our environment will be transformed, but so will our bodies. This video is part of a series where we inves...

📅 2026-09-15 10:52:48    •    Live Science
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Peculiar land bridge separates a pair of colorful lakes in Patagonia — Earth from space
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Peculiar land bridge separates a pair of colorful lakes in Patagonia — Earth from space

QUICK FACTSWhere is it? Lake Pueyrredón and Lake Posadas, Argentina [-47.41961002, -71.87622200]What's in the photo? The point where two different-colored lakes meetWho took the photo? An unnamed astronaut on board the International Space StationWhen was it taken? Sept. 15, 2020This eye-catching astronaut photo shows the point where an ancient Patagonian lake has been split by a peculiar land bridge, creating two contrastingly colored bodies of water.Lake Pueyrredón (on the left in the photo) is the Argentine half of a roughly 40-mile-long (65 kilometers) glacial lake, which stretches across the country's border with Chile in Patagonia — a region in South America that is well known for its d...

📅 2026-09-15 10:47:33    •    Live Science
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The U.S. Eradicated this flesh-eating parasite. Now it’s back
Science News

The U.S. Eradicated this flesh-eating parasite. Now it’s back

The flesh eating New World screwworm has returned to the United States, threatening livestock, wildlife, pets and potentially people as it spreads north. A new UC San Diego tracking system aims to predict where the parasite could strike next while officials revive the eradication strategy that defeated it decades ago.

📅 2026-09-15 10:39:40    •    ScienceDaily
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