Which planets rotate vertically?
The Planet Uranus has its axis at 97.9 degees to the plane of rotation around the sun and because it takes 84 of our years to go round once, it has 42 years of light and 42 years of darkness at its poles. Pluto is the other Planet which has a similar angle of 122 degrees though I think Pluto has recently been demoted to a dwarf planet or asteroid because of its small relative size compared to other planets. Even so it has a companion moon called Charon.
