In 1929, scientists discovered a ninth planet at the
outer edge of the solar system. But they could not
decide what to name the planet. Read to find out
how one girl solved the problem and changed the
identity of the planet forever.
In 1929, scientists discovered a ninth planet at the
outer edge of the solar system. But they could not
decide what to name the planet. Read to find out
how one girl solved the problem and changed the
identity of the planet forever.