Solar and Heliospheric Observatory (SOHO)
This is the home page of SOHO, the Solar and Heliospheric Observatory. The SOHO spacecraft is a collaboration between ESA and NASA to study the sun from core to outer corona. Instruments onboard SOHO generate images of solar flares and coronal mass ejections; measure ultraviolet and emitted radiation; analyze gravity oscillations; and more. You'll find a complete gallery of images, news articles, classroom activities, and publications by the SOHO team.
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NASA: Earth-Directed CME Lights the Sky
What happens when a coronal mass ejection is moving in a direction toward Earth? Intense geomagnetic storms and gorgeous aurorae in latitudes you wouldn't expect to see them. Read about this one that occurred in 2015.