News

  1. Microbes

    What makes chocolate taste so good? It’s the microbes

    Beans matter, but microbes may be the real secret to fine chocolate flavor. Scientists are building starter cultures that may improve quality.

    By Tina Hesman Saey
  2. Earth

    Useful metals get unearthed in U.S. mines, then they’re tossed

    Recovering these metals from mining by-products destined for waste sites could offset the need to import them from elsewhere or open new mines.

    By Nikk Ogasa
  3. Health & Medicine

    Elderly cats with dementia may hold clues for Alzheimer’s

    Immune cells in aging cat brains with amyloid beta destroy nerve endings, mimicking the progression of Alzheimer’s disease in humans.

    By Claudia López Lloreda
  4. Health & Medicine

    Scientists perform the first pig-to-human lung transplant

    The genetically modified lung remained viable for nine days, but the recipient’s immune responses need more research, scientists say.