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    • Why are rare earth elements so rare?

      Why are rare earth elements so rare?

      Live Science via Yahoo News· 7 months ago

      A silver-colored raw chunk of neodymium stone, part of the rare earth group, the world's strongest magnetic ore used in the technology industry. Rare...

    • Earth’s core is leaking, scientists say

      Earth’s core is leaking, scientists say

      CNN via Yahoo News· 6 months ago

      Ancient helium that became trapped in Earth’s core when our planet formed billions of years ago may be leaking from lava flows, according to researchers.