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    • UN watchdog warns on nuclear trafficking

      UN watchdog warns on nuclear trafficking

      Al Jazeera· 5 days ago

      The United Nations’ nuclear watchdog has called for “vigilance” as it warned of thousands of instances of radioactive materials going missing. The...

    • A Look Back, May 20

      A Look Back, May 20

      Daily Hampshire Gazette· 5 days ago

      ■The radioactive material found by a local man in a small gray box in the Northampton Meadows Saturday has turned out to be part of a demonstration kit...

    • When Was Earth Last Struck by a Supernova?

      When Was Earth Last Struck by a Supernova?

      Scientific American· 23 hours ago

      In this case, a supernova within about 160 light-years, or 1.5 quadrillion kilometers, would qualify. Iron 60 is a radioactive isotope of iron that...