News

  1. Planetary Science

    Mercury’s surface still changing

    A population of small cliffs on Mercury suggests that the planet might have been tectonically active in the last 50 million years.

    By Christopher Crockett
  2. Archaeology

    Ancient Maya codex not fake, new analysis claims

    New report suggests an ancient Maya text — the bark-paper Grolier Codex — could be the oldest known document in Americas.

    By Bruce Bower
  3. Health & Medicine

    Sugar industry sought to sugarcoat causes of heart disease

    Sugar industry has long, sweet history of influencing science.

    By Laura Beil
  4. Earth

    Nuclear blasts, other human activity signal new epoch, group argues

    A group of scientists will formally propose the human-defined Anthropocene as a new epoch in Earth’s geologic history within a few years, probably pegging the start date to nuclear tests.