Tightrope walker Nik Wallenda walks the high wire from the United States side to the Canadian side over the Horseshoe Falls in Niagara Falls, Ontario, on June 15. (Mark Blinch/Reuters)
An image provided by NASA, the SDO satellite captures a ultra-high definition image of the Transit of Venus across the face of the sun at on June 5 from space. The last transit was in 2004 and the next pair of events will not happen again until the year 2117 an...
Updated: 5:04 PM GMT on January 07, 2013
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