جرقه ايراني: علمي، آموزشي، سرگرمي و اخبار و …

Radioactive Cloud Originated in Russia: What Might Have Caused It?

A mysterious cloud of radioactive material that hovered over Europe last month came from Russia, Russian weather monitoring data released today (Nov. 21) suggests.

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Radioactive Cloud Originated in Russia: What Might Have Caused It?

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