Saturn

James Keeler and the Rings of Saturn

James Keeler and the Rings of Saturn

On September 10, 1857, American astronomer James Edward Keeler was born. Keeler is best known for being the astronomer who confirmed James Clerk Maxwell‘s theory that the rings of Saturn were not solid (requiring uniform rotation), but composed of meteoric particles. James Edward Keeler was born in La Salle, Illinois, to William F. Keeler, who served as a paymaster in the U.S. Navy at the time of the American Civil…
The Exploration of Saturn

The Exploration of Saturn

True color picture of Saturn, assembled from Voyager 2 images obtained Aug. 4, 1981 On August 25, 1981, American space probe Voyager 2 passed Saturn and transmitted stunning pictures of the ring planet. The space probe had been launched by NASA on August 20, 1977 to study the outer Solar System and eventually to push forward into interstellar space. Until today, operating for more than 30 years the spacecraft still…
Christiaan Huygens and the Discovery of Saturn Moon Titan

Christiaan Huygens and the Discovery of Saturn Moon Titan

Saturn Moon Titan (lower left) in comparison to the Earth and it’s Moon Image by NASA On March 25, 1655, Saturn’s largest moon Titan was discovered by astronomer and physicist Christiaan Huygens. Titan is considered as the most Earth-like moon discovered so far and the second largest in the solar system. Christiaan Huygens was born into an influential family and provided with a decent education all his life, leaning several…
Giovanni Cassini and the Saturn Moon Rhea

Giovanni Cassini and the Saturn Moon Rhea

Giovanni Domenico Cassini (1625 – 1712) On December 23, 1672, Italian astronomer Giovanni Domenico Cassini discovered Rhea, the 2nd largest of the 62 Saturn moons that are known by today. Giovanni Domenico Cassini studied in Genoa as well as Bologna and was occupied with a professorship at the University of Bologna for studies in astronomy and mathematics. There he taught euclidean geometry and due to the church’s restrictions, ptolemy astronomy.…
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