News

  1. Climate

    Climate-cooling aerosols can form from tree vapors

    Climate-cooling, cloud-seeding aerosols can form in the atmosphere without the sulfuric acid spewed from fossil fuel burning, new research suggests.

    By Thomas Sumner
  2. Neuroscience

    Alzheimer’s culprit may fight other diseases

    A notorious Alzheimer’s villain may help bust microbes.

    By Laura Sanders
  3. Archaeology

    Stone circles show Neandertals’ social, technical skills

    Ancient human relatives built circular stalagmite structures inside a French cave.

    By Bruce Bower
  4. Planetary Science

    Space experts say sending humans to Mars worth the risk

    At a meeting in Washington, NASA and aerospace reps discuss the hopes and hurdles of landing a crew on Mars by the 2030s.