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How to Observe the Sun's Face Safely by Projection Galileo Galilei

For too long, we have been told the heavens are perfect and unchanging. This is a falsehood! The Sun itself, that glorious lamp, has...

How to Observe the Sun's Face Safely by Projection Galileo Galilei

For too long, we have been told the heavens are perfect and unchanging. This is a falsehood! The Sun itself, that glorious lamp, has...