Clouds, veering cabbies, and old optics didn’t deter committed spectators of this last-chance astronomical event.

Sunspots change their shape and size as they travel across the face of the Sun; here's an evolving sunspot group caught in the act.

Three lines of evidence suggest that the internal process driving the Sun's 11-year activity cycle is stalling out.

Looking for a daytime astronomy project to pursue? Why not set your sights on our nearest star?

Before an eclipse occurs the media often provides information on how to watch the event safely. Unfortunately, despite the best intentions, inaccurate or confusing information on safe observing techniques is often provided. Here are the facts.

The surface of the Sun is a dynamic, living place that can change unpredictably from day to day.

With modest equipment and attention to safety, you can enjoy observational astronomy throughout the day.