IRIS Resolving Unresolved Structure

NASA’s IRIS, which is able to look at a low layer of the sun’s atmosphere in unprecedented resolution, reveals details in the bright loops seen over the sun’s limb that have never been witnessed before.
The B&W content, at top, shows the sun’s limb as seen by IRIS. The color version, at bottom, shows what Skylab saw in 1970’s. Credit: NASA/IRIS/Hansteen
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