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The Sun Today

Explore the Sun, space weather, auroras, eclipses, solar missions, and the heliosphere.

C. Alex Young, Ph.D., heliophysicist and science communicator, explains how solar activity works, how it travels through space, and how it affects Earth.

From solar flares and coronal mass ejections to auroras and eclipses, discover how our nearest star connects to the solar system around us.

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