It contains 99.9 percent of all the matter in our solar system and sheds hot plasma at nearly a million miles an hour. The temperature at its core is...

Europe and the United States are working together on an unprecedented journey to learn more about the impact of the Sun on our planet, to really know...

On August 21, 2017, millions of Americans will witness the first total solar eclipse to cross the continental United States in 99 years. While hordes...