Fight climate change with more swamps

These scientists say the world needs more swamps, bogs, fens, marshes and other types of wetlands.

How scientists know our seas are rising faster

Sea levels have been rising since the end of the last Ice Age. But, as climate warms, the rate of the rise is accelerating. A new ESA video explains how we know.

Why is Earth’s spin axis drifting?

As Earth rotates, its spin axis — an imaginary line that passes through the North and South Poles — drifts and wobbles. Scientists now have, for the 1st time, identified 3 reasons why.

Birds flying south. How many will return?

Contrary to popular thought, birds wintering in the tropics survive the winter better than birds wintering in the U.S. That’s despite the fact that tropical wintering birds migrate 3 to 4 times farther.

Which bird migrates the farthest?

Over its lifetime of about 25 years, an Arctic tern can fly nearly 3 times the distance from the Earth to the moon.

Day and night exactly equal at equinoxes?

We’re coming up on an equinox, a word that means “equal night.” Days and nights are nearly equal across the globe now. Nearly, but not quite. Here’s why.

Supernumerary rainbow over New Jersey

Look slightly inside a bright primary bow, and sometimes you’ll see these fringes. Their numbers and spacing can change from minute to minute.

How leaves tell each other about a bug attack

“We often think of plants as being passive and at the mercy of their environment. My jaw literally dropped when I first saw these videos … They beautifully illustrate how active and complex plants really are.”

spacecraft voyager 1

Here’s the 1st-ever portrait of Earth and moon from a distance

On September 18, 1977, as it headed toward the outer solar system, Voyager 1 looked back and acquired a stunning image of our Earth and moon.

Giant iceberg A68 finally pushes off

We saw this break away from the Larsen C ice shelf in Antarctica last year. Now, finally, it’s beginning to drift.