Cicero is known as the most famous lawyer of ancient times and belongs to the most eminent speakers, lawyers of all time. We know him less as a philosopher and, as we would say today, a scientist aware of the discoveries also in other areas of knowledge. Natural sciences were called at the time of Cicero as physiology.
Cicero and his contemporaries were aware of the movement of celestial bodies. In the book “De natura deorum”, Cicero gives an example of a model of the celestial system made by a certain Pozidonius. It was a “[globe] which brings about the same movement in the Sun and Moon and five wandering stars as is brought about each day and night in the heavens.”