Science

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How Iron Builds Up in Your Brain—and Why It Matters Science

How Iron Builds Up in Your Brain—and Why It Matters

Iron is essential for brain function, but as we age it accumulates in key brain regions, damaging neurons and driving cognitive decline. Scientists ar...

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How Gene Therapy for Deafness Works—One Injection Science

How Gene Therapy for Deafness Works—One Injection

Scientists can now restore hearing in people born deaf by injecting functional genes directly into the inner ear. Here's how the therapy works, which...

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How the Rubin Observatory Will Map the Entire Sky Science

How the Rubin Observatory Will Map the Entire Sky

The Vera C. Rubin Observatory in Chile uses the world's largest digital camera to photograph the entire visible sky every three nights, hunting astero...

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What Is Permafrost and Why Its Thaw Threatens Earth Science

What Is Permafrost and Why Its Thaw Threatens Earth

Permafrost stores twice as much carbon as the atmosphere. As the Arctic warms, this frozen ground is thawing—unleashing greenhouse gases, destabilizin...

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What Are Astrocytes and How They Shape Your Memory Science

What Are Astrocytes and How They Shape Your Memory

Astrocytes, the brain's star-shaped glial cells, were long dismissed as mere support staff. New research reveals they actively encode fear memories, r...

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What Are MXenes and Why They Could Rival Graphene Science

What Are MXenes and Why They Could Rival Graphene

MXenes are a fast-growing family of two-dimensional materials made from transition metal carbides and nitrides, offering metallic conductivity, tunabl...

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What Are Nanoplastics and Why Are They Everywhere? Science

What Are Nanoplastics and Why Are They Everywhere?

Nanoplastics—plastic fragments smaller than a bacterium—have been found in oceans, blood, and even human brains. Here is how they form, where they end...

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How Rip Currents Work—and How to Survive Them Science

How Rip Currents Work—and How to Survive Them

Rip currents kill more beachgoers than sharks, hurricanes, and tornadoes combined. Here is how these invisible rivers form, why they catch swimmers of...

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How NASA's SLS Mega-Rocket Works—and Why It Matters Science

How NASA's SLS Mega-Rocket Works—and Why It Matters

NASA's Space Launch System is the most powerful rocket ever built for crewed spaceflight, designed to send astronauts beyond low Earth orbit for the f...

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How Supershear Earthquakes Work—and Why They Hit Harder Science

How Supershear Earthquakes Work—and Why They Hit Harder

Supershear earthquakes rupture faster than their own seismic waves, creating Mach cone shockwaves analogous to sonic booms. These rare but devastating...

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How Free-Return Trajectories Work—and Why They Save Lives Science

How Free-Return Trajectories Work—and Why They Save Lives

A free-return trajectory uses the Moon's gravity to slingshot a spacecraft back to Earth without engine burns, serving as the ultimate safety net for...

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How Gamma-Ray Bursts Work—the Universe's Biggest Blasts Science

How Gamma-Ray Bursts Work—the Universe's Biggest Blasts

Gamma-ray bursts are the most powerful explosions in the known universe, releasing more energy in seconds than the Sun emits in its entire lifetime. H...

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