December is an exciting month for stargazers, filled with a multitude of celestial events that promise to dazzle and inspire. From a bright supermoon to a rare interstellar comet, this month offers ...

The Full moon, the Yule Moon, is on December 4. This is a supermoon, the second largest of 2025. The next evening, the moon ...

Using the Webb telescope’s powerful Near Infrared Imager and Slitless Spectrograph (NIRISS) instrument, the team detected a sprawling helium cloud known as an exosphere. This exosphere stretches ...

AsDecember 2025 unfolds, skywatchers are in for a celestial treat. From the brilliance of a supermoon to the fleeting ...

An international team including astronomers from the University of Geneva (UNIGE) and the National Center of Competence in ...

The Gemini South telescope is located on Cerro Pachón mountain in the Chilean Andes, at an elevation of over 2,700 meters ...

Published in Nature Astronomy, the findings represent a first: while helium escape has been observed before, this is the ...

This month will bring some striking celestial sights, including one of the year’s best meteor showers and a glowing ...

December for lovers of astronomy is highlighted by the Geminids meteor shower, as Greg Redern highlights in December’s ...

Each Monday, I pick out North America’s celestial highlights for the week ahead (which also apply to mid-northern latitudes ...