EarthChernobyl-based birds avoid radioactive nests Some species around the exploded nuclear reactor choose nest sites with lower levels of background radiation, but how they know is a mystery 51¶¯Âþ
TechnologyNuclear submarines – the ultimate insurance? Plans are revealed to replace the UK's ageing nuclear submarine fleet, each vessel of which carries up to 48 nuclear warheads 51¶¯Âþ