When prey get scarce, these jellies become cannibals

Some jellies go ballistic when their prey disappears. Cannibalistic, that is. Mnemiopsis leidyi (NEE-me-op-sis LAY-dee-eye) is a…

Fossil fuels appear to release far more methane than we thought

Using fossil fuels releases far more methane — a potent greenhouse gas — than people had…

Skeletons hint that ancient societies had women warriors

History has suggested ancient societies left warfare to men. But remains of North American hunter-gatherers and…

CO2 emissions have nosedived as COVID-19 keeps people home

Stay-at-home orders have curbed the spread of COVID-19 in many places. Those limits on travel also…

Let’s learn about Jupiter

If you went looking for a planet as different from Earth as you could find, you…

Ancient recipes helped scientists resurrect a long-lost blue hue

Scientists have resurrected a purple-blue hue that had been lost to time. Called folium, this watercolor…

Scientists Say: Momentum

Momentum (noun, “moh-MEN-tum”) This word describes a moving object based on its mass and velocity. An object’s…

Let’s learn about bubbles

Bubbles are everywhere. You just need to know where to look. There’s the obvious place —…

Our gut microbes love a good workout

Exercise does more than make us hot and thirsty. It can have big effects on the…

Sweat tech alerts athletes when to rehydrate — and with what

Exercise affects the body in many ways. Our heart beats faster. Our lungs work harder. Our…