News

  1. Health & Medicine

    Can taking ashwagandha supplements improve health?

    Ashwagandha is all over TikTok. Some studies report benefits, but more research is needed.

    By Sean Cummings
  2. Planetary Science

    Scientists find a long-sought electric field in Earth’s atmosphere

    The Earth’s ambipolar electric field is weak but strong enough to control the shape and evolution of the upper atmosphere.

    By Lisa Grossman
  3. Life

    Mega El Niños kicked off the world’s worst mass extinction

    Long-lasting, widespread heat and weather extremes may have caused the Great Dying extinction event 252 million years ago.

    By Jake Buehler
  4. Artificial Intelligence

    Talking to a chatbot may weaken someone’s belief in conspiracy theories

    AI might help lift conspiracy theorists out of the rabbit hole, but some researchers say proceed with caution.