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SKA telescope 1st light! Milky Way core and more

A prototype antenna for the new SKA telescope, to be located in South Africa and Australia, just made a big step forward with a 1st-light image!

Theresa Wiegert

January 28, 2024

Can beavers revitalize California’s mountains and meadows?

Officials in California are relocating beavers (Castor canadensis) to help improve the state's mountain environment and waterways.

Dave Adalian

January 17, 2024

The strange story of the grave of Copernicus

Nicholas Copernicus was the astronomer who, five centuries ago, explained that Earth revolves around the sun, rather than vice versa. A true Renaissance man.

EarthSky Voices

January 14, 2024

Why pee is yellow and how that keeps us healthy

A recent study revealed that bilirubin reductase is why pee is yellow. Learn more about the discovery and why yellow can be a sign of good health.

Dave Adalian

January 14, 2024

NASA to unveil the X-59, an experimental supersonic jet

The X-59 is designed to break the sound barrier without creating a super-loud sonic boom. You can see it on January 12, 2024.

Lia De La Cruz

January 12, 2024

5 solar eclipses that changed our view of the world

Throughout history, total solar eclipses have blazed a path for science. Learn more about 5 solar eclipses that changed our view of the world.

Andrew Osiow

January 9, 2024

January birthstone: The colorful garnet gemstone

Garnets, the January birthstone, are often thought to be red gemstones. But they also come in yellow, green, orange, brown and black.

Editors of EarthSky

January 3, 2024

Mighty earthquake rocks Japan. Coastal areas evacuated

Mighty earthquake rocks Japan! The earthquake measured magnitude 7.5 according to USGS. It struck Japan on Monday afternoon, local time, prompting strong tsunami warnings.

Deborah Byrd

January 1, 2024