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  1. Tech

    Tiny magnetic coils could help break down microplastic pollution

    Carbon nanotubes designed to release plastic-eroding chemicals could clear the long-lasting trash from waterways.

    By Maria Temming
  2. Paleontology

    This newfound predator may have terrorized the Cambrian seafloor

    A newly discovered spaceship-shaped predator raked through the Cambrian seafloor in search of food.

    By Carolyn Gramling
  3. Astronomy

    TESS has found the first-ever ‘ultrahot Neptune’

    NASA’s TESS telescope has spotted a world that could be a bridge between other types of exoplanets: hot Jupiters and scorched Earths.

    By Lisa Grossman
  4. Cosmology

    Debate over the universe’s expansion rate may unravel physics. Is it a crisis?

    Measurements of the Hubble constant don’t line up.