Australian authorities found a radioactive capsule smaller than a coin that was lost in the vast Outback after nearly a week-long search involving around 100 people along an 870 mile stretch of highway, officials said. #RioTinto #Caesium137 #News #Reuters #newsfeed Subscribe: http://smarturl.it/reuterssubscribe Reuters brings you the latest business, finance and breaking news video from around the globe. Our reputation for accuracy and impartiality is unparalleled. Get the latest news on: https://www.reuters.com/ Follow Reuters on Facebook: https://www.facebook.com/Reuters Follow Reuters on Twitter: https://twitter.com/Reuters Follow Reuters on Instagram: https://www.instagram.com/reuters/?hl=en