Mushroom-shaped cloud and water column from the underwater Baker nuclear explosion of July 25, 1946. Photo taken from a tower on Bikini Island, 3.5 mi (5.6 km) away. (Image courtesy of US Govt. ... more 
Mushroom-shaped cloud and water column from the underwater Baker nuclear explosion of July 25, 1946. Photo taken from a tower on Bikini Island, 3.5 mi (5.6 km) away. (Image courtesy of US Govt. Defense Threat Reduction Agency.) less 
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Tue 26 Feb, 2013 6:30 AM IST