If finding the tiny radioactive capsule that went missing in the vast Australian outback was like finding a needle in a haystack, at least the needle was crying out “here I am!”, Dr Edward Obbard says.
Just 8mm by 6mm – the size of a 10c coin – the capsule fell out of a truck on its way from a Rio Tinto mine site in Western Australia’s Pilbara region to Perth, sparking a six-day hunt across the 1,400km desert route.
