News

  1. Health & Medicine

    Infrared light offers promise of laser-sharp cancer therapy

    Laser technique targets tumors with reduced risk of side effects compared with conventional chemotherapy.

    By Janet Raloff
  2. Life

    Oldest mites in amber discovered

    Two new species of arthropods found in 230-million-year-old fossilized resin show similarities to modern-day species.

    By Meghan Rosen
  3. Humans

    Neil Armstrong, first man on moon, dies at 82

    Apollo 11 commander held true to his engineering roots.

    By Alexandra Witze
  4. Life

    Average bear could be pretty smart

    Computer tests of solitary species reveal animals’ ability to learn concepts.

    By Susan Milius
  5. Astronomy

    Black hole’s annual feast begins

    Astronomers offer explanations for source of light around object with an unusual yearly behavior.