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    • When Was Earth Last Struck by a Supernova?

      When Was Earth Last Struck by a Supernova?

      Scientific American· 2 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...

    • Did Bundt cake originate in Minnesota?

      Star Tribune (Minneapolis) via Yahoo News· 47 minutes ago

      The Bundt — that unmistakable round cake with the hole in the middle — has been a staple at bake sales, potlucks and backyard barbecues for decades. All of that, plus a little watercooler talk ...