This image of the sun was taken with a filter which shows radiation only in the extreme ultraviolet (UV) range of the spectrum, shown as blue. UV radiation causes sunburn and damages skin tissue, which can lead to melanoma – a cancer of the skin. UV light is not visible to the naked eye, but under the midday summer sun you can feel it burning your skin.
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The Solar and Heliospheric Observatory - SOHO (ESA & NASA)
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