Protect your eyes while enjoying the spectacle of a total solar eclipse - CNN

A total solar eclipse is set to cross parts of Europe and Russia in August, prompting safety warnings from experts. Officials emphasize that specialized eclipse glasses are necessary to prevent permanent eye damage.
Why it matters
Public safety awareness is critical for large-scale astronomical events to prevent widespread ocular injuries.
The scintillating cosmic phenomenon of a total solar eclipse will be visible to millions of people across parts of Greenland, Iceland, northern Russia, Spain and Portugal on August 12. It’s the first of three eclipses anticipated over Spain in the next two years. The best way to prepare for safe viewing of the stellar lineup is to locate a pair of eclipse glasses. Sunglasses won’t be enough to protect your eyes for direct viewing of the spectacle. A total solar eclipse occurs when the moon passes between Earth and the sun, completely blocking the sun’s face. Since the total solar eclipse will occur over Spain in the evening, sky-gazers are in for a rare treat: a sunset eclipse in which they will see a crescent sun setting after the total solar eclipse.
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