Image: Skylab Solar flare
Description: This photograph of the Sun, taken on December 19, 1973, during the third and final manned Skylab mission, shows one of the most spectacular solar flares ever recorded, spanning more than 588,000 kilometers (365,000 miles) across the solar surface. The flare gives the distinct impression of a twisted sheet of gas in the process of unwinding itself. In this photograph the solar poles are distinguished by a relative absence of supergranulation network, and a much darker tone than the central portions of the disk. Several active regions are seen on the eastern side of the disk. The photograph was taken in the light of ionized helium by the extreme ultraviolet spectroheliograph instrument of the U.S. Naval Research Laboratory.
Title: Skylab Solar flare
Credit: http://www.archive.org/details/S74-23458; see also JSC Digital Image Collection page
Author: NASA
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
Image usage
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