News
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PhysicsExploding stars scattered traces of iron over Antarctic snow
Researchers melted half a ton of snow to find just 10 atoms of a radioactive variety of iron.
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LifeHow these tiny insect larvae leap without legs
High-speed filming reveals how a blob of an insect can leap more efficiently than it crawls.
By Susan Milius -
EarthThe worst wildfires can send smoke high enough to affect the ozone layer
Pyrocumulonimbus clouds can send soot and other damaging particles 23 kilometers into the air
By Megan Sever -
ClimateMercury levels in fish are rising despite reduced emissions
Climate change and overfishing can increase how much mercury accumulates in fish, counteracting efforts to reduce human-caused emissions.