The crescent moon will shine with Jupiter among the stars of Gemini early on Sept. 16. Turn your eyes to the east in the ...

"It's an elegant answer, really, because we thought it was a tiny galaxy full of many separate cold stars, but it's actually, effectively, one gigantic, very cold star." ...

A strange flash on Saturn earlier this summer caught the attention of astronomers and sparked speculation about a possible planetary impact. The sighting was first reported by amateur astronomer Mario ...

A team of Pennsylvania State University researchers has a unique take on mysterious red dots first observed by the James Webb Space Telescope.

At just 25, Cecilia Payne-Gaposchkin applied quantum physics to a treasure trove of astronomical observations to show that stars are mostly hydrogen and helium.

The long-standing idea of planets forming in perfectly flat, orderly discs has been challenged by new research. Instead of calm, pancake-shaped structures of dust and gas, astronomers have now ...

Pennsylvanians will likely need to bundle up this winter, since the Old Farmers Almanac is predicting that it will be a cold ...

Three celestial bodies are preparing to meet up for one night in September in a cosmic conjunction that should be widely visible in the sky.