Venus rotates in the other way to the opposite planets within the photo voltaic system, and astronomers aren’t certain why – however it may have been brought on by the drag of an historic moon in a backwards orbit.
The early photo voltaic system was a chaotic place, with rocks hurtling round at extraordinary speeds. Valeri Makarov on the United States Naval Observatory in Washington DC and Alexey Goldin at Teza Technologies in Chicago carried out a collection…