Uncategorized

  1. Health & Medicine

    NASA’s Twins Study reveals effects of space on Scott Kelly’s health

    Ten research groups studying the twin astronauts found long-term spaceflight can alter a person’s physiology and gene activity.

    By Jeremy Rehm
  2. Health & Medicine

    Ketamine cultivates new nerve cell connections in mice

    In mice, ketamine prods nerve cells to connect, which may explain the hallucinogenic drug’s ability to ease depression.

    By Laura Sanders
  3. Climate

    Climate change made the Arctic greener. Now parts of it are turning brown.

    Arctic browning could have far-reaching consequences for people and wildlife, affecting habitat and atmospheric carbon uptake as well as increasing wildfire risk.

    By Hannah Hoag
  4. Anthropology

    A new hominid species has been found in a Philippine cave, fossils suggest

    Cave fossils found in the Philippines come from a newly discovered member of the human lineage, researchers say.