Beautiful Yet Unnerving Photos of the Arctic Getting Greener

Using tricked-out drones, scientists are watching vegetation boom in the far north. Their findings could have big implications for the whole planet.

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The Race To Crack Battery Recycling—Before It’s Too Late

Millions of EVs will soon hit the road, but the world isn’t ready for their old batteries. A crop of startups wants to crack this billion-dollar problem.

2h

Geometry Reveals How the World Is Made of Cubes

An exercise in pure mathematics has led to a wide-ranging theory that unites Plato with geophysics.

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Endangered Vancouver Island Marmots Are Making a Comeback

Canada’s most endangered mammal is back from the brink of extinction—and offers hope as an “ambassador” for the conservation of less adorable species.

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What's a Semi-Log Plot and How Can You Use It for Covid Data?

It is very useful for showing data that spans different orders of magnitude—like case numbers in South Korea compared to the numbers in the United States.

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Does the AstraZeneca Vaccine Also Stop Covid Transmission?

Vaccines can prevent symptoms, but some can also keep people from spreading infection. That’s critical, and no one knows if the new vaccines do it.

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Meet the Microbes Living on Da Vinci’s Iconic Sketches

Think you’ve got an interesting microbiome? Your body ain’t got nothing on what’s accumulated on Leonardo’s drawings over 500 years.

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A New Study About Color Tries to Decode ‘The Brain’s Pantone’

How do humans perceive color? An NIH experiment finds a way to measure what happens after light hits the eye—using brain scans.

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This Squishy 3D-Printed Human Heart Feels Like the Real Thing

A clever technique allows scientists to scan a heart and reconstruct it in a soup of gelatin. It's like making jello, only way more useful for surgeons.

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The Last, ‘Ultra-Cold’ Mile for Covid-19 Vaccines

Two vaccines are nearly here—but their unusual storage requirements could deprive the rural areas that need them most. A tech fix might be coming.

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