<p>The Global Rainbow is projected into the night sky from Scrabo Tower, Newtownards, Northern Ireland, Friday. The large scale outdoor laser projection created by New York artist Yvette Mattern is visible across the night sky, the event signals 100 days to go until the opening of the London 2012 Festival which is a tweleve-week festival of arts running parallel to the Olympic Games taking place in London.</p>

March 17, 2012