News

  1. Tech

    Cells snack on nanowires

    Human cells eat silicon nanowires in a process called phagocytosis. Nanowire-infused cells could be a step towards biological electronic devices.

    By Meghan Rosen
  2. Anthropology

    New footprint finds suggest range of body sizes for Lucy’s species

    Tracks discovered in Tanzania appear to have belonged to the tallest known Australopithecus afarensis individual, but stature estimates can be tricky.

    By Bruce Bower
  3. Earth

    Megadiamonds point to metal in mantle

    Imperfections in supersized diamonds hint at metallic iron and nickel in Earth’s mantle.

    By Laurel Hamers
  4. Planetary Science

    Dawn spacecraft maps water beneath the surface of Ceres

    Water ice sits just beneath the surface and within some permanently shadowed craters of the dwarf planet Ceres.