News

  1. Earth

    Earth’s mantle may be hotter than thought

    Earth’s mantle is warmer than previously thought, suggests a new experiment that better accounts for water content in rocks.

    By Thomas Sumner
  2. Computing

    Winning against a computer isn’t in the cards for poker pros

    Poker-playing computers beat professional players at heads-up no-limit Texas Hold’em.

    By Emily Conover
  3. Animals

    Wild elephants clock shortest shut-eye recorded for mammals

    Among mammals, wild elephants may need the least amount of sleep, new measurements suggest.

    By Susan Milius
  4. Paleontology

    Oldest microfossils suggest life thrived on Earth about 4 billion years ago

    A new claim for the oldest microfossils on Earth suggests that life may have originated in hydrothermal vents, but some scientists have doubts.