When did humans learn to count?

Linguistic clues show how people around the world first developed mathematical thought.

Guatemala’s Fuego volcano erupts in fury

The death toll is up to 65, with hundreds injured, from Sunday's powerful eruption of Volcan de Fuego in Guatemala.

Can you see better than your dog, cat, or goldfish?

How does your kitchen look through the eyes of a cat, fish, fly or mosquito? A new study compares our human eyesight to the vision of other creatures.

2018 Atlantic hurricane season outlook

Atlantic hurricane season starts today. Experts are forecasting a 75% chance that the 2018 season will be near- or above-normal, thanks in part to a weak El Niño.

The Standard Model theory of particle physics

"What a dull name for the most accurate scientific theory known to human beings ... As a theoretical physicist, I’d prefer 'The Absolutely Amazing Theory of Almost Everything'."

Today is Walt Whitman’s birthday

"Love the earth and sun and the animals ..." - Walt Whitman

The real story behind that melted camera

NASA's melted camera became a social media phenomenon last week. Here’s the story behind the picture.

Could we learn E.T.’s language?

If an extraterrestrial civilization had a language, would it have common features with Earth languages? Linguists explain why they think it's possible.

On and in extinction

"I am living a few hundred feet above a scar, a surface representing the worst disaster ever inflicted on planet Earth."

Scientists track major freshwater change

'What we are witnessing is major hydrologic change,' they said. Over 14 years, Earth's wet land areas got wetter. Dry areas got drier. They also reported multiple hot spots resulting from groundwater depletion.