Transit of Venus:

For all, it was surely a once-in-a-lifetime chance to view the planet Venus as it made its transit past the sun these past two days within view of millions of people on Earth. The last Venus transit was in 2004, and the next pair of events will not happen again until the years 2117 and 2125. Lloyd Young (23 photos total)

In this composite image provided by NASA, the SDO satellite captures the path sequence of the transit of Venus across the face of the sun at on June 5-6 as seen from space. The last transit was in 2004 and the next pair of events will not happen again until the year 2117 and 2125. (NASA via Getty Images)