Uncategorized

  1. Planetary Science

    Never-before-seen dunes on Pluto spotted in New Horizons images

    Images from the New Horizons spacecraft reveal dunes on Pluto — but the sand-sized grains must have had an unusual boost to get moving.

    By Lisa Grossman
  2. Health & Medicine

    Experts advise: Start colorectal screening at 45, not 50

    The American Cancer Society recommends that colorectal screening begin at the age of 45 for average-risk individuals.

    By Aimee Cunningham
  3. Astronomy

    Two-faced star reveals a pulsar’s surprising bulk

    An ultramassive pulsar is frying its stellar companion so that the star shows two different temperatures.

    By Lisa Grossman
  4. Genetics

    Guidelines call for limits to whole genome testing for fetuses

    Powerful tests offer unprecedented detail about fetal genomes.