News

  1. Earth

    Extinctions breed carbon chaos

    Massive die-off left ecosystems vulnerable, an analysis suggests.

    By Daniel Strain
  2. Astronomy

    Supernova to superfluid

    Neutron stars, some of the densest objects in the universe, may be cooled by frictionless liquid sloshing in their cores.

    By Devin Powell
  3. Life

    Running a cancer roadblock

    A new study shows how cells escaping from a breast tumor overcome a piece of RNA that usually stops them.

    By Tina Hesman Saey
  4. Space

    First stars may still shine

    Simulations suggest some slow-burning remnants of the early universe may still exist.

    By Ron Cowen
  5. Humans

    Running past Neandertals

    Stone Age humans’ heel bones, more so than those of Neandertals, aided long-distance running.