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NASA | View of 2012 Venus Transit


NASA | View of 2012 Venus Transit : ...On June 5 2012, SDO collected images of the rarest predictable solar event--the transit of Venus across the face of the sun. 


 This event happens in pairs eight years apart that are separated from each other by 105 or 121 years. 

The last transit was in 2004 and the next will not happen until 2117.
Yt video : NASAexplorer