Mercury Transit of the Sun is Underway!
With a proper eye-protecting filter, the planet Mercury can be seen crossing the face of the sun today. This happens approximately 13 times per century.… Read More »Mercury Transit of the Sun is Underway!
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With a proper eye-protecting filter, the planet Mercury can be seen crossing the face of the sun today. This happens approximately 13 times per century.… Read More »Mercury Transit of the Sun is Underway!