Watch: Incredible hurricane visualization

Take 2 minutes to watch this stunning NASA timelapse showing sea salt, dust, and smoke flowing around Earth during 2017's active hurricane season.

Our nights are brighter, and brighter

The International Dark-Sky Association has campaigned for decades to reduce artificial light at night. Yet a new study shows our night skies still brightening at a rate of 2 percent each year.

Do dolphins get Alzheimer’s disease?

In many ways, dolphin brains are a lot like human brains. Researchers report on pathological signs of Alzheimer’s in these awesome creatures.

What monarch butterflies prefer

Will our survival strategy for monarchs work? Initiatives emphasize milkweed plantings along roadsides. New research shows egg-laying monarchs much prefer off-road farmlands.

Fern, contrail shadow, singing dunes

It was a beautiful day for natural phenomena in the sky, and on the ground.

Help astrobiologist find extreme rocks

A scientist launches a hunt for earthly extraterrestrials. Help her find them!

Venezuela is losing its last glacier

Venezuela’s last glacier is about to disappear, making it the first country in modern history to lose all of its glaciers.

Video: Our living planet from space

“That’s the Earth, breathing every single day, changing with the seasons, responding to the sun, to the changing winds, ocean currents and temperatures."

Scientists warn: Soon it will be too late to save Earth

More than 15,000 scientists in 184 countries have signed a letter urging the world to address major environmental concerns. "Soon it will be too late to shift course away from our failing trajectory, and time is running out."