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Saturn is the sixth planet from the Sun and the second largest in the Solar System, ... Trojan asteroids have been discovered for Mars, Jupiter, Uranus, and Neptune.
The timeline of discovery of Solar System planets and their natural satellites charts the progress of the discovery of new bodies over history. Each object is listed in chronological order of its discovery (multiple dates occur when the moments of imaging, observation, and publication differ), identified through its various designations (including temporary and permanent schemes), and the ...
Galileo also discovered that the Moon was cratered, that the Sun was marked with sunspots, and that Jupiter had four satellites in orbit around it. [13] Christiaan Huygens followed on from Galileo's discoveries by discovering Saturn's moon Titan and the shape of the rings of Saturn. [14]
It was discovered using NASA's infrared Spitzer Space Telescope, [160] and was seen over the entire range of the observations, which extended from 128 to 207 times the radius of Saturn, [84] with calculations indicating that it may extend outward up to 300 Saturn radii and inward to the orbit of Iapetus at 59 Saturn radii. [161]
The Titan Saturn System Mission (TSSM) was a joint NASA/ESA proposal for an exploration of Saturn and its moons [10] Titan and Enceladus, where many complex phenomena have been revealed by the recent Cassini–Huygens mission.
1979 – Pioneer 11 flies by Saturn, providing the first ever closeup images of the planet and its rings. It discovers the planet's F ring and determines that its moon Titan has a thick atmosphere. [199] 1979 – Goldreich and Tremaine postulate that Saturn's F ring is maintained by shepherd moons, a prediction that would be confirmed by ...
The new discovery increases the moons orbiting the "jewel of our solar system" to 82, surpassing Jupiter
Saturn flyby (closest approach 124,000 km), close encounter of Titan and encounters with a dozen other moons. USA (NASA) Voyager 1: 12 April 1981: First reusable crewed orbital spacecraft (Space Shuttle). USA (NASA) STS-1: 1 March 1982: First Venus soil samples. First sound recording of another world (Venus). USSR Venera 13: 10 June 1982