The Sun is both a natural laboratory for plasma physics and the focus of the field of study known as Heliophysics. Heliophysics involves the physics of how the Sun actually works. Dr. Michael Kirk, P.I. of the NASA Heliophysics Education Activation Team, defines the state of matter known as plasma, and explains how studying the Sun helps us better understand satellites, radio signals, GPS signals, and many other technologies that affect our life every day. Solar eclipses, including the upcoming annular solar eclipse (October 2023) and total solar eclipse (April 2024), are also discussed.        NASA HEAT Homepage https://science.nasa.gov/science-activation-team/nasa-heliophysics-education-activation-team    NASA Eclipses Home https://solarsystem.nasa.gov/eclipses/home/ 

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