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
One of Our Planets Is Missing by referencing a line from the live action Trek episode "A Taste of Armageddon". One of Our Planets Is Missing "One of Our Planets Is Missing" is the third episode of the first season of the animated American science fiction television series "". It first aired in the NBC Saturday morning lineup on September 22, 1973, and was written by veteran "" director Marc Daniels. In this episode, the "Enterprise" must contend with a massive space cloud that eats planets, now targeting a Federation colony of over 82 million. On stardate 5371.3, the "Enterprise" encounters a giant cloud that consumes