Sun at maximum in 2001

Astronomy & Observing News

Is the Sunspot Cycle About to Stop?

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

Astronomy & Observing News

Results from Hinode:
Sunrise on Coronal Heating

Thanks to sharp new movies of details on the Sun, researchers are resolving two of its surprisingly complex mysteries.

Celestial News & Events

An Eclipse-chaser's Mad Dash

Some people will go to the ends of the Earth — and do anything possible — to see a solar eclipse.