It’s December, and we’re in our darkest month. It is also now meteorological winter — the name given to the coldest three ...

The vantage point at Cerro Pachón, with its dark skies and high-altitude clarity, enhances the richness of the image.

A surprisingly mature spiral galaxy named Alaknanda has been spotted just 1.5 billion years after the Big Bang—far earlier ...

Auroras may be visible from Alaska to New York as a speedy solar wind and incoming coronal mass ejection are expected to ...