Discovering the Sun's Mysteriously Hot Atmosphere (VIDEO)

NASA/Goddard Space Flight Center

Caption

The coronal heating problem remains one of the greatest unanswered questions in astrophysics. Learn how astronomers first discovered evidence for this mystery during an eclipse in the 1800s, and what scientists today think could explain it. Download this video in HD formats: https://svs.gsfc.nasa.gov/12903

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NASA's Goddard Space Flight Center

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