Russia finds radioactive isotopes following mysterious blast
Analyses of the radionuclides in the fallout over Severodvinsk, northwest Russia show several isotopes that would not have been present
Read moreAnalyses of the radionuclides in the fallout over Severodvinsk, northwest Russia show several isotopes that would not have been present
Read moreNuclear safety expert Andrey Zolotkov with the Murmansk-based environmental group Bellona says there is always a risk of unforeseen circumstances
Read moreRussian authorities confirm mysterious brief radiation spike a few hours after the missile engine blast, but the source of release
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