Researchers melted half a ton of snow to find just 10 atoms of a radioactive variety of iron.
Source:
https://www.sciencenews.org/article/exploding-stars-scattered-traces-iron-over-antarctic-snow4
Only the Autodidact is Free
Researchers melted half a ton of snow to find just 10 atoms of a radioactive variety of iron.
Source:
https://www.sciencenews.org/article/exploding-stars-scattered-traces-iron-over-antarctic-snow4