Greenpeace projection onto Sizewell nuclear power station in Suffolk during the early hours of 26th April 1996, the 10th anniversary of the Chernobyl accident. 

Greenpeace projected a message of remembrance onto Big Ben at 0123 am Friday 26th April, the time reactor 4 at Chernobyl exploded 10 years ago. 

Chernobyl 10th Anniversary Action - UK (1996)