News

  1. Health & Medicine

    Long-lasting shots work better than daily pills to prevent HIV in at-risk women

    A more discreet HIV prevention method — a shot once every eight weeks —could help to boost use in women at risk.

    By Aimee Cunningham
  2. Space

    Runaway stars may create the mysterious ultraviolet glow around some galaxies

    Hot blue stars kicked out of their birthplace can travel thousands of light-years to their galaxies’ hinterlands, new computer simulations show.

    By Ken Croswell
  3. Life

    Dog ticks may get more of a taste for human blood as the climate changes

    At high temperatures, some brown dog ticks that can carry the bacteria that causes Rocky Mountain spotted fever seem to prefer humans over dogs.