This image shows a sequence of photographs by NASA's SDO spacecraft, taken in the extreme ultraviolet spectrum (171 Angstroms), and stitched together to show Venus's path across the face of the Sun. 
On June 5-6 2012, SDO collected images of one of the rarest predictable solar events: 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 previous transit was in 2004 and the next will not happen until 2117.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/24662369@N07">NASA/SDO, AIA</a>
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<a href="//commons.wikimedia.org/wiki/Flickr" class="mw-redirect" title="Flickr">Flickr</a>: <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/24662369@N07/7344062712">SDO's Ultra-high Definition View of 2012 Venus Transit -- Path Sequence</a>