The partial solar eclipse was visible to over 16 million people when it darkened the sky over the Pacific on Sept. 21-22 ...

This inverted solar portrait was captured during the waning partial phase, as the moon slipped left to right off the sun's ...

The festival was part of Sun Day — two words — the first-ever nationwide day calling for the large-scale deployment of solar ...

The sun has become more and more active over the last 16 years, in a turn that surprised scientists and could affect space ...

After solar activity spent several decades on the decrease, the number of sunspots, flares and coronal mass ejections is once ...

The bottom of the world is set to be front and center for a partial solar eclipse. Antarctica, New Zealand and a sliver of ...

NASA is set to launch three satellites Wednesday aimed at tracking solar storms and improving forecasts of space weather that ...

The sun is in its most active phase—solar summer—causing auroras and posing real risks to satellites, GPS, and power systems ...

NASA and NOAA launch three satellites to monitor space weather, protecting vital technologies like GPS and power grids from solar storms.

Viewers will first see the moon take its first bite out of the sun at 1:29 p.m. ET (1729 GMT) on Sept. 21. Observers located in territories including southern New Zealand and Antarctica will see over ...

AP photographer Dmitri Lovetsky had been trying to photograph a plane flying across the disk of the sun for several days.

Knoxville Drive Electric Festival in Knoxville, Tennessee on September 27, 10am-3pm: This event bills itself as the largest ...