To celebrate Scientific American ’s 180th anniversary, we’re publishing a jigsaw every weekday to show off some of our most ...

One of history’s dark jokes is that the Roman Empire, for all its vaunted accomplishments, only made a single great ...

An attosecond—or 0.000000000000000001 second—is no time at all for a person. That is not so for electrons, atoms and ...

Babies lacking in key gut bacteria are at greater risk of developing asthma, allergies or eczema Dirty diapers are more than ...

Forecasts and warnings largely worked during the recent flooding catastrophe in Texas. Those systems are expected to degrade as President Donald Trump’s cuts to the National Weather Service, satellite ...

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