Due to the tiny size of the capsule and the huge distances involved, authorities warn the chances of finding it are slim. Department of Fire and Emergency Services/APHow rare is it to lose a radioactive device? Radiation Services WA says radioactive substances are transported throughout Western Australia on a daily basis without any issues. A conveyor belt transports iron ore at the Gudai-Darri mine operated by the Rio Tinto in the Pilbara region of Western Australia, June 21, 2022. At that rate, the capsule could be radioactive for the next 300 years, said Deb from RMIT University.

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