NOAA: Coronal Mass Ejections
This tutorial from the National Oceanic and Atmospheric Administration gives a brief but informative overview of coronal mass ejection:  What is it? Why does it occur? How is CME detected? How does the phenomenon affect us on Earth?
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NASA: What to See in CME Images
Don't know how to tell one CME image from another? You're not alone! This rich resource from NASA's Goddard Space Flight Center lets you interactively explore 8 images of different coronal mass ejections. Some look like a balloon being inflated; some look like a teardrop; some are shaped like a spiral. Which ones are space scientists most concerned about? (Answer: CMEs that appear to have full "halos".) Great way to integrate real-life connections.
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The Kinematics and Morphology of Solar Coronal Mass Ejections

For teachers or students wishing to take a deep dive into the physics of CMEs, this 2010 doctoral thesis provides comprehensive information about detection instruments, methods of CME tracking, the kinematics of CME motion/expansion, and propagation of Earth-directed CMEs in 3D. The thesis was written by Jason P. Byrne and submitted for a doctoral degree at the University of Dublin, Trinity College.
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