SUNSPOT, N.M. – The Sunspot Solar Observatory in Otero County is currently closed to the public due to a hazardous discovery.

Sunspot AR3088 put on a striking display of solar activity, unleashing multiple M-class flares as it rotated across and out ...

A record-breaking study into a giant sunspot that triggered Earth's biggest geomagnetic storm in more than two decades has revealed surprising new details about the explosive dark patch. The monster ...

With a techniques borrowed from earthquake detection, researchers are learning to predict where sunspots will boil-up. That ...

Mercury spill closes Sunspot Solar Observatory and nearby forest trails indefinitely, though officials say there is no public ...