Tag: Habitable zone

  • Nation & World

    A ‘Goldilocks zone’ for planet size

    Researchers have redefined the lower size limit for planets to maintain surface liquid water for long periods of time, extending the so-called habitable zone for small, low-gravity planets.

    5 minutes
    moon Ganymede orbits the giant planet Jupi
  • Nation & World

    Planets, planets everywhere

    The rapid rise in discoveries of planets circling other stars is changing astronomers’ views of the galaxy and the Earth’s place in it, giving impetus to the search for extraterrestrial life, astronomer and Radcliffe Fellow Ray Jayawardhana says.

    4 minutes