DR JUERG ALEAN / SCIENCE PHOTO LIBRARY DR JUERG ALEAN / SCIENCE PHOTO LIBRARY
Sequence of photos taken every 10 minutes during the nearly total solar eclipse of March 20th, 2015, in southeastern Iceland. The moon covered up to 99.4 per cent of the sun (the path of totality narrowly missed Iceland). All but the centre image were taken with a dark filter and show sunspots on the solar disk. At maximum eclipse, the filter was removed to record the inner solar corona and red prominences.
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