Images of a smiling sun caught on camera by NASA on Oct. 26 prompted a solar storm warning on Saturday, with NOAA alerting of anticipated unsettled conditions.

Today, NASA’s Solar Dynamics Observatory caught the Sun "smiling." Seen in ultraviolet light, these dark patches on the Sun are known as coronal holes and are regions where fast solar wind ...

A NASA observatory captured what appeared to be a jack-o-lantern-esque smile on the sun's surface, showing what are actually splotches on the sun's surface that are cooler than the surrounding areas.

A NASA observatory captured what appeared to be a jack-o-lantern-esque smile on the sun's surface, showing what are actually splotches on the sun's surface that are cooler than the surrounding areas.

A NASA observatory captured what appeared to be a jack-o-lantern-esque smile on the sun's surface, showing what are actually splotches on the sun's surface that are cooler than the surrounding areas.