This video explores the preparations made by astronomers for the July 11, 1991 solar eclipse. Given a remarkable opportunity to observe the solar corona and the sun’s magnetic field, scientists in observatories atop the dormant Mauna Kea volcano in Hawaii face equipment breakdowns, incompatible telescopes and threatening weather as this remarkable event approaches. Produced and written by Thomas Levenson; narrated by David Ossman. Study guide available; closed captioned.