Stargazers Watch Mercury Transit in Front of the Sun

On Monday, the planet Mercury wandered directly in front of the sun — a rare “transit” that only happens about 13 times a century. Stargazers gathered at the foot of Milad Tower in Tehran to view the event.    

On Monday, the planet Mercury wandered directly in front of the sun — a rare “transit” that only happens about 13 times a century. Stargazers gathered at the foot of Milad Tower in Tehran to view the event.

 

 

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