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  1. Archaeology

    Arctic hunter-gatherers were advanced ironworkers more than 2,000 years ago

    Swedish excavations uncover furnaces and fire pits from a big metal operation run by a small-scale society, a new study finds.

    By Bruce Bower
  2. Climate

    Africa’s ‘Great Green Wall’ could have far-reaching climate effects

    The “Great Green Wall,” a tree-planting project to stop desertification in northern Africa, could alter climate patterns in the region and beyond.

    By Carolyn Gramling
  3. Planetary Science

    Enceladus’ plumes might not come from an underground ocean

    The celebrated plumes of Saturn’s moon Enceladus could come from pockets of watery mush in the moon’s icy shell, simulations suggest.

    By Lisa Grossman

  4. Find out how we’re connecting current events to currents of the past

    By Helen Thompson

  5. These are the most-read Science News stories of 2021

    Science News drew over 21 million visitors to our website this year.