Barbara Brown, 83, works as a yoga instructor at nursing homes in Richmond, Virginia. She said her work has been fulfilling, though she needs to work.

Understanding what happens to Antarctica’s ice matters, because as it melts, sea levels rise, affecting lives and economies around the world.

A bevy of comets, a "blood moon" total lunar eclipse and impressive northern lights were just three of the skywatching highlights in 2025. Here's how they unfolded.