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This galaxy cluster provides a lens on distant space
The Webb space telescope has imaged the stunning galaxy cluster MACS J1149, putting a spotlight on its prominent gravitational lensing.
January 25, 2026
See the best deep-sky photos of December 2025 here
Enjoy this gallery of deep-sky photos for December 2025 from our EarthSky community. If you have a great photo to share, send it in, too. We love to see them!
January 2, 2026
At aphelion: Does the size of sun look smaller?
Earth's farthest point - aphelion - in orbit around the sun is around July 6. The eye can't detect it, but a camera shows the sun appears at its smallest then.
January 1, 2026
The Big Dipper, the Pointers and Polaris
Want to find Polaris, the North Star? The entire northern sky turns around it. If you can find the Big Dipper, you can always find Polaris.
January 1, 2026
See the Martian moon Phobos fly over a dust storm
See the Martian moon Phobos as it passes over iconic landscapes on the red planet, including a trio of volcanoes and the largest canyon in the solar system.
December 31, 2025
The Christmas Tree cluster, a December delight
The Christmas Tree cluster is a collection of sparking bluish-white stars. It is above a cone-shaped cloud of gas in the constellation Monoceros.
December 23, 2025
See the best northern lights photos of 2025
The blog Capture the Atlas announced its 2025 Northern Lights Photographer of the Year contest. See 10 of the best northern lights photos here.
December 14, 2025
The last full supermoon of 2025. Best pics here!
The full Cold Moon on December 4 was the last supermoon of 2025. See a gallery of photos of the last full supermoon from the EarthSky community here.
December 5, 2025
See the best deep-sky photos of November 2025 here
Enjoy this gallery of deep-sky photos for November 2025 from our EarthSky community. If you have a great photo to share, send it in, too. We love to see them!
December 5, 2025
Mercury’s sodium tail is now appearing in special filters
On December 3, 2025, Steven Bellavia imaged Mercury's sodium tail flowing away from the sun. See the image here and read more about Mercury's tail.
December 4, 2025
