Iceland volcano erupts! See a livestream here

After weeks of earthquakes, an Iceland volcano began erupting powerfully on December 18, 2023. It was a bigger eruption than volcanologists had predicted!

Birds with backpacks to help study Earth’s atmosphere

Birds with backpacks: a new study from NASA's 'Internet of Animals' shows that high-flying great frigatebirds can provide detailed sampling of the atmosphere.

Virga is rain that doesn’t reach the ground

Learn what virga is and how it forms, and see great photos to help you learn how to identify it yourself! Plus, learn if radar can pick up virga.

Emperor penguins: A report from the Antarctic

EarthSky friend Eliot Herman took a trip to the Antarctic, where he had the opportunity to see emperor penguins. Read his report and enjoy his amazing images.

Oldest known wild bird, Wisdom, is back!

A beloved albatross named Wisdom is the world's oldest known wild bird. She's more than 70! And she just returned again to her winter nesting ground.

What’s a green flash and how can I see one?

Have you ever seen the green flash from a setting sun? Learn how to see one here, plus how they appear, and enjoy some great photos and watch a video!

Einstein’s gravity and quantum mechanics united at last?

Modern physics is founded on 2 pillars: Einstein's gravity and quantum mechanics. But these 2 theories contradict each other. Does this theory reconcile them?

Kelvin-Helmholtz clouds look like ocean waves

Kelvin-Helmholtz clouds - aka billow clouds or shear-gravity clouds - can sometimes look like ocean waves. Check out these photos of them!

Audubon Christmas Bird Count signup has begun

The Audubon Christmas Bird Count, held each winter, is one of the longest-running community science projects. You can help collect important data about birds.

Earth’s magnetic field shields us. But it can move and flip

Earth's magnetic field helps protect life on Earth. But the magnetic poles wander, and they flip polarity every 100,000 to 1,000,000 years.