News

  1. Planetary Science

    Ancient Martian meteorite preserves chunks of planet’s early crust

    Rock could reveal what Mars was like 4.4 billion years ago.

    By Andrew Grant
  2. Animals

    Comb jelly immune system can spot old enemies

    Animal at base of family tree could help researchers understand the evolution of immunity.

    By Susan Milius
  3. Ecosystems

    Virus-blocking insects taking over Vietnamese island

    Field trial tests mosquitoes that may stop the spread of dengue infection.

    By Beth Mole
  4. Anthropology

    Human ancestors threw stone-tipped spears at prey

    African discoveries show that hunting weapons thrown from a distance appeared by 279,000 years ago.

    By Bruce Bower
  5. Health & Medicine

    Quick cooling after cardiac arrest questioned

    For a decade, doctors have made induced hypothermia standard practice.