Uncategorized

  1. Archaeology

    Two stones fuel debate over when America’s first settlers arrived

    Stones possibly used to break mastodon bones 130,000 years ago in what is now California get fresh scrutiny.

    By Bruce Bower
  2. Quantum Physics

    The new light-based quantum computer Jiuzhang has achieved quantum supremacy

    A second type of quantum computer has now performed a calculation impossible for a traditional computer.

    By Emily Conover
  3. Humans

    Ancient humans may have deliberately voyaged to Japan’s Ryukyu Islands

    Satellite-tracked buoys suggest that long ago, a remote Japanese archipelago was reached by explorers on purpose, not accidentally.

    By Charles Q. Choi
  4. Health & Medicine

    The ‘last mile’ for COVID-19 vaccines could be the biggest challenge yet

    The need for cold storage and booster shots could create problems for distributing coronavirus vaccines to nearly everyone in the world.