If you live in the northern hemisphere, there are a few staple constellations that you're probably rather familiar with: Ursa Major, Ursa Minor, and Orion, among plenty of others.

Astronomical winter began in the Northern Hemisphere on the afternoon of Dec. 21, 2024, meaning that we are just three weeks into the three-month season. Here’s when spring begins later this year.

A new analysis found a declining trend in snowpack across 82 out of 169 major Northern Hemisphere river basins, including the Colorado River in the US, which winds its way along the state of Utah.