All Stories
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- Health & Medicine
The mercury in that tuna
Pinning down how much of the poison is in the fish we buy.
- Climate
Explainer: Global warming and the greenhouse effect
Like the glass-walled greenhouses used to grow out-of-season plants, certain gases in Earth’s atmosphere trap the sun’s energy near the planet’s surface. This keeps Earth warm enough for life to flourish.
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- Humans
A louse-y start for clothing
A date for appearance of body lice suggests time of first clothes.
- Physics
New waves for safe flying
Scientists are perfecting a new generation of airport scanning machines.
- Animals
Animals without oxygen, underwater
Three species found possibly living where they should not.
- Planets
Wrong-way planets do gymnastics
A group of planets that orbit the wrong way may have flipped over their stars.
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- Planets
Mercury’s magnetic twisters
The planet's strange atmosphere may have a lot to do with the sun.
- Environment
Indoor ozone stopper
Oils from human skin fight off this harmful chemical, but at a cost.
