Science

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What Is Teotihuacan—and Why Is It Still a Mystery? Science

What Is Teotihuacan—and Why Is It Still a Mystery?

Teotihuacan was the largest city in the pre-Columbian Americas, yet no one knows for certain who built it, what language its people spoke, or why it c...

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How Extracellular Vesicles Work—Medicine's Natural Couriers Science

How Extracellular Vesicles Work—Medicine's Natural Couriers

Extracellular vesicles are tiny parcels released by nearly every cell in the body, carrying proteins, RNA, and lipids between cells. Scientists are no...

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How the Muon g-2 Experiment Works—and Why It Matters Science

How the Muon g-2 Experiment Works—and Why It Matters

The Muon g-2 experiment at Fermilab measures the magnetic wobble of muons with extreme precision, testing whether unknown particles exist beyond the S...

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How Earth Day Works—and Why It Changed the World Science

How Earth Day Works—and Why It Changed the World

Earth Day began as a campus teach-in in 1970 and grew into the largest secular civic event on the planet, directly spawning the EPA and landmark envir...

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How Microplastics Enter Your Body—and What They Do Science

How Microplastics Enter Your Body—and What They Do

Microplastics reach the human body through food, water, and air, accumulating in organs from the lungs to the brain. Here's what science knows about h...

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How the Clean Air Act Works—and Why It Saves Lives Science

How the Clean Air Act Works—and Why It Saves Lives

The Clean Air Act is one of the most consequential environmental laws ever written, preventing hundreds of thousands of premature deaths and cutting m...

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How the Goldman Environmental Prize Works—the Green Nobel Science

How the Goldman Environmental Prize Works—the Green Nobel

The Goldman Environmental Prize, often called the Green Nobel, honors six grassroots environmental activists each year — one from each inhabited conti...

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What Is the Dolomite Problem—Geology's 200-Year Puzzle Science

What Is the Dolomite Problem—Geology's 200-Year Puzzle

Dolomite is one of Earth's most common minerals, yet for two centuries no one could grow it in a lab. Here's how the 'dolomite problem' stumped scient...

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How Lipid Nanoparticles Work—Medicine's Tiny Couriers Science

How Lipid Nanoparticles Work—Medicine's Tiny Couriers

Lipid nanoparticles are the microscopic delivery vehicles that made mRNA vaccines possible and are now revolutionizing gene therapy, cancer treatment,...

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How CRISPR Cures Sickle Cell—One Gene Edit Science

How CRISPR Cures Sickle Cell—One Gene Edit

CRISPR gene editing can now treat sickle cell disease by reactivating fetal hemoglobin production, offering a potential one-time cure for a condition...

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How Megathrust Earthquakes Work—Earth's Most Powerful Science

How Megathrust Earthquakes Work—Earth's Most Powerful

Megathrust earthquakes are the most powerful seismic events on the planet, generated where tectonic plates collide at subduction zones. This explainer...

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How Topological Superconductors Work—and Why They Matter Science

How Topological Superconductors Work—and Why They Matter

Topological superconductors combine zero-resistance electricity with exotic quantum properties that could revolutionize computing. Here's how they wor...

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