Dirty diapers are more than a messy reality of infant care—baby poop can be an indicator of an infant’s gut microbiome and ...

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 ...

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 ...

Flash floods happen when heavy rains unleash more water than the ground can absorb, causing that water to pile up and flow to ...

A hydrologist explains why Texas Hill Country is known as Flash Flood Alley and how its geography and geology can lead to ...

Conscientiousness appears to be about 40 to 50 percent heritable, so conscientious parents tend to raise conscientious kids.

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

Hatim Sharif is a professor of civil and environmental engineering at the University of Texas at San Antonio.

Brain differences in children and teens who experiment with drugs early show up before they take their first puff or sip ...

Karolina Rudnicka is a linguist at the University of Gdańsk in Poland. She researches language variation and change, ...

Dominik Stecuła is an assistant professor of Communication and Political Science at The Ohio State University. His research ...