2016-17 winter outlook for US

NOAA's outlook for this winter predicts a warmer, drier South, and cooler, wetter North. Drought is expected to persist in California and expand in the Southeast.

Night-shining clouds over Antarctica

The AIM spacecraft has spotted noctilucent clouds - aka night-shining clouds - above Earth's southernmost continent. The season for them started early this year!

Signs of climate change at Arctic tree line

Near the Arctic Circle, in northern Alaska, is where forests give way to tundra. Researchers are looking at how the warming climate might affect the ecology of this northern boundary.

A mystery in the clouds

A peculiar ring in the clouds over Warwickshire, England this month sent the Cloud Appreciation Society's Gavin Pretor-Pinney on a hunt for answers.

Southeastern US wildfires still blazing

Fires continue to blaze in the southeastern United States with no end in sight. Here’s a satellite look at a few of them.

Climate change affecting all life on Earth

A new analysis of hundreds of studies says that almost every aspect of life on Earth has been affected by climate change ... and that's not good news for humans.

Drought still grips southern California

California has dry spells, but the state hasn't had exceptional drought since at least 2000. Now, about 20 percent of California is in exceptional drought, and many trees have died.

What happens if the sun disappears?

Some things that would happen here on Earth if our giant source of heat and light were to vanish from the sky, and how long it would take.

China’s new feathered Mud Dragon dino

A Chinese construction crew unearthed a new dinosaur fossil. It had feathers and a beak. A scientist called it "one of the most beautiful, but saddest, fossils I’ve ever seen."

2016 likely hottest year on record

It'll be the hottest year on record unless the final weeks of 2016 are the coldest of the 21st century so far, according to the World Meteorological Organization.