Stability of the Solar System that keeps the far side of the Moon away from the Earth. Mercury is in a 3:2 spin–orbit resonance. The planets' orbits are chaotic over longer timescales, such that the whole Solar System possesses a Lyapunov time in the range of 2–230 million years. In all cases this means that the position of a planet along its orbit ultimately becomes impossible to predict with any certainty (so, for example, the timing of winter and summer become uncertain), but in some cases the orbits themselves may change dramatically. Such chaos manifests most strongly as changes in eccentricity, with some planets' orbits
Terra Est Quaestuosa keep newer players safe while they learn the basics of the game. Players are awarded global rankings based on their performances in each set of each server. These points are used to determine an overall ranking within the game. Initially the game was called Terra Est Quaestuosus, which is incorrect in Latin, since Terra is female. The name was changed to Quaestuosa after receiving criticism when the website's name was publicised in the media in 2000. Terra Est Quaestuosa Terra Est Quaestuosa (or TEQ) is a Web-based massively multiplayer online game (MMOG) that has been operating since 1998 and has