Discovery and exploration of the Solar System Domenico Cassini later discovered four more moons of Saturn and the Cassini division in Saturn's rings. Edmond Halley realised in 1705 that repeated sightings of a comet were recording the same object, returning regularly once every 75–76 years. This was the first evidence that anything other than the planets orbited the Sun. Around this time (1704), the term "Solar System" first appeared in English. In 1781, William Herschel was looking for binary stars in the constellation of Taurus when he observed what he thought was a new comet. Its orbit revealed that it was a new planet, Uranus, the first
The Rings of Akhaten The Rings of Akhaten "The Rings of Akhaten" is the seventh episode of the seventh series of the British science fiction television series "Doctor Who", first broadcast on BBC One on 6 April 2013. It was written by Neil Cross and directed by Farren Blackburn. In the episode, alien time traveller the Doctor (Matt Smith) takes his new companion Clara Oswald (Jenna-Louise Coleman) to the Rings of Akhaten, where several planetoids in a ring system are orbiting a larger planet. They attend a religious festival where the young Queen of Years, Merry Gejelh (Emilia Jones), is about to be sacrificed