Hale explains sunspots

Through careful spectrographic study, early 20th century American astronomer George Hale discovered that sunspots are caused by distortions in the Sun's powerful magnetic field.

Release date: 30 Jun 2011

3 minutes


Role Contributor
NarratorMark Halliley
NarratorZam Baring
Series ProducerDavid McNab
DirectorDavid McNab
ProducerTeresa Hunt

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