Keep Petrels Plastic-Free

Grizzly bear near Obsidian Creek in Yellowstone National Park

Yellowstone Bear Hair

Scientists collect hairs from Yellowstone grizzly bears to conduct genetic studies

Hubble Gets Tucked In

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Dreaming of a Green Christmas

Making Your Holiday Tree Eco-Friendly

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Personal Genome Project

These holidays, give the people who have everything the one thing they don’t: a map of their own DNA

Happy Hubbledays!

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White Cliffs of McMurdo

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Penguin Watching at Cape Royds

The Rose Walk, Giverny, 1920–22, Musée Marmottan Monet

Eyeing Impressionism

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Impromptu Ice Sculptures

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Scott’s Cross

Did Lincoln Have Cancer?

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The Last World

A quick questionnaire with Terence Tao

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Behold, the Geminids

One of the year’s best meteor showers comes in December. Here’s how to view the action

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Blame the Rich

They made us who we are, some researchers now say

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Wild Things

Life as We Know It

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Parrots Before Penguins

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Super-Sized Scorpion

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