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  1. Chemistry

    50 years ago, scientists fought over element 104’s discovery

    A conflict known as the Transfermium Wars marked a contentious struggle over the search for new elements beginning in the 1960s.

    By Emily Conover
  2. Health & Medicine

    U.S. measles cases hit a record high since the disease was eliminated in 2000

    Each year from 2010 to 2017, 21 million children did not get vaccinated against measles, according to UNICEF.

    By Aimee Cunningham
  3. Genetics

    A marine parasite’s mitochondria lack DNA but still churn out energy

    Missing mitochondrial DNA inside a parasitic marine microbe turned up inside the organism’s nucleus.

    By Tina Hesman Saey
  4. Archaeology

    Excavations show hunter-gatherers lived in the Amazon more than 10,000 years ago

    Early foragers may have laid the foundation for farming’s ascent in South America’s tropical forests.