Uncategorized

  1. Earth

    Erosion has erased most of Earth’s impact craters. Here are the survivors

    Earth’s largest known impact crater measures 160 kilometers in diameter. The newest, yet to be confirmed, stretches a still-whopping 31 kilometers.

    By Emily DeMarco
  2. Physics

    These sound waves can levitate and move particles in new ways

    A new machine that levitates objects using sound waves can manipulate several particles at once.

    By Maria Temming
  3. Health & Medicine

    Tumor ‘organoids’ may speed cancer treatment

    Growing mini tumors in a lab dish, researchers can screen compounds to find promising combinations for treating rare cancers.

    By Esther Landhuis
  4. Science & Society

    Top 10 stories of 2018: Climate change, gene-edited babies, hidden craters and more

    2018 was a year all about impact — on the planet, on solving crimes, on mosquito populations, on reversing paralysis, and more.