The Hubble Space Telescope has glimpsed the most distant single star it's ever observed, glimmering 28 billion light-years away. And the star could be between 50 to 500 times more massive than our sun ...

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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 Gemini North telescope atop Hawaii’s lofty shield volcano Mauna Kea. A powerful telescope, perched above the clouds at some 13,800 feet, has snapped a brilliant view of distant galaxies.

Astronomer Robert Kirshner investigates some of the universe’s biggest questions: What happens when a star explodes? Is the universe still expanding? He recently added a new mystery to the list: Is ...

The Discovery Telescope is one of the largest in the country. It is located in Happy Jack, about 50 miles away from the Lowell Observatory. The telescope has been instrumental in discovering ...

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 ...

How did the universe begin? A compact NASA space telescope that uses less power than a refrigerator is poised to chip away at that very large question. Called SPHEREx, and set for launch on a SpaceX ...