Staff at the European Southern Observatory have a system to clean the La Silla Observatory's delicate mirrors without breaking them. When you purchase through links on our site, we may earn an ...

Discovered in 2017 by Pan-STARRS atop Halealakalā on Maui, ʻOumuamua was the first confirmed interstellar visitor. Its ...

Astronomers using the James Webb Space Telescope have spotted something that shouldn’t exist—at least not so early in the ...

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Just how big would a telescope need to be to actually see an alien world in detail? The James Webb Telescope just took a photo of a newly discovered exoplanet. Exciting stuff but the raw image just ...

Our species called this latest 366-day journey around the sun “2024” and packed into it a ton of astronomical and spaceflight excitement. A solar eclipse crossed North America. Two robotic landers ...

See a special exhibit at Texas Science & Natural History Museum, “Big Eye on Dark Skies: Hobby-Eberly Telescope” and learn how the HET helps scientists. Discover how astronomers study distant galaxies ...

Big telescopes feature some of the finest and most precise mirrors in the world. So when one gets dirty, what happens? The European Southern Observatory (ESO) operates some of the most powerful ...

The Priority Mail 'Spiral Galaxy' and Priority Mail Express 'Star Cluster' stamps are now available in panes of four at post offices nationwide. When you purchase through links on our site, we may ...