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  1. Health & Medicine

    Putting the big chill on cryotherapy

    Evidence is lacking for whole-body cryotherapy as a treatment for muscle soreness.

    By Meghan Rosen
  2. Planetary Science

    Mighty winds fuel megastorms on Titan

    Saturn’s moon Titan might produce long-lasting storms squalls that flood the surface with liquid methane.

    By Christopher Crockett
  3. Earth

    Earth’s water originated close to home, lava analysis suggests

    Scarcity of a hydrogen isotope called deuterium in molten rock from Earth’s depths suggests that the planet’s H2O originated from water-logged dust during formation, not comets.

    By Thomas Sumner
  4. Astronomy

    Cosmic rays maintain their mystery

    Cosmic rays come from all over the universe, including some places we’re not so sure about.