Planet the Drake equation, which estimates the number of intelligent, communicating civilizations that exist in the Milky Way. There are exoplanets that are much closer to their parent star than any planet in the Solar System is to the Sun, and there are also exoplanets that are much farther from their star. Mercury, the closest planet to the Sun at 0.4 AU, takes 88 days for an orbit, but the shortest known orbits for exoplanets take only a few hours, e.g. Kepler-70b. The Kepler-11 system has five of its planets in shorter orbits than Mercury's, all of them much more massive
Planet Tolex Planet Tolex Planet Tolex is a Canadian children's science fiction television series which aired on CBC Television from 1953 to 1954. The fictional Planet Tolex of the series title was located in the Solar System, orbiting so that it was always opposite to the Earth, always causing its sightline with Tolex to be blocked by the Sun. The series' puppet-based characters were led by Bricol and Lexo and their fellow Tolex residents. Leo and Dora Velleman were the series creators and puppeteers. This Montreal-produced half-hour series was broadcast on Tuesdays at 5:00 p.m. (Eastern) from 20 October 1953 to 27