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Physics

Martian lightning

The Red Planet’s dust devils charge up particles, providing first direct evidence of this type of electrical discharge on Mars.

Health & Medicine

Downside of red-hot chili peppers

In the wild, a culinary kick comes with risks to the plant.

Climate

Fire

Understanding long-term changes in wildfire patterns challenges scientists from multiple disciplines.

Physics

Microswimmers make a splash

Researchers study secrets of microbes' locomotion and how to mimic that movement.

Humans

Seeking genetic fate

Personal genomics companies offer forecasts of disease risk, but the science behind the packaging is still evolving.