Perched atop the summit of Mauna Kea in Hawaii, the Gemini North Observatory is one of the world's most powerful windows into ...

Look to the east after sunset on a clear winter night and you’ll spot a bright, tightly packed collection of stars. That’s ...

Northern Taurid meteor shower 2025 peaks tonight amid Leonids and zooming fireballs. Here's how to see, where to look, when ...

Astronomers have discovered that the Seven Sisters of the Pleiades star cluster have more stellar siblings than we thought  — ...

An ancient Skiri Pawnee star map on elk skin reopens the debate about its true function and challenges Western ...

Full Supermoon . See the biggest and brightest moon of the year—the full supermoon—on the evening of Nov. 5. The moon will officially reach its fullest state at 8:19 a ...

The week features the observation of transient celestial events, including a recently identified supernova candidate (AT 2025yyn) in Ursa Major and Comet C/2025 A6 Lemmon, which is nearing naked-eye ...

Mercury will reach its greatest eastern elongation on Oct. 29, marking one of the best evenings to see the planet this fall ...

Astronomers have discovered that the iconic Pleiades constellation has thousands more “sibling” stars hidden across the sky, ...

Despite being so high up, there is no night sky — or stars —in Mexico City. Andrea Fischer asked an expert why that is.