Galileo Galilei was the first to observe Saturn with a telescope in 1610. Because of the crudeness of his telescope, he couldn't determine what the rings were.

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While approaching Saturn in 2004, Cassini found that the radio rotation period of Saturn had increased appreciably, to approximately 10h 45m 45s ± 36s.

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July 1610: Galileo Galilei spots Saturn's rings through a telescope, but mistakes them for a "triple planet." 1655: Christiaan Huygens discovers Saturn's rings ...

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Saturn was known for thousands of years, but its rings were discovered in 1610 by Galileo, and identified as rings in 1655 by Huygen.

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In 1610, Italian astronomer Galileo Galilei was the first to gaze at Saturn through a telescope.

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8 days ago — It was discovered telescopically in 1655 by the Dutch scientist ... Even at the extremely high pressures found deeper in Saturn's ...

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In 1610, the year after his first observations with a telescope, Galileo Galilei became the first person to observe Saturn's rings, though he could not see them ...

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It was Christaan Huygens who first proposed that Saturn was surrounded by a solid ring in 1655. The puzzles have only increased since NASA's Voyager 1 and 2 ...

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Galileo first observed Saturn through his telescope in July, 1610. He had already announced his discovery of the moons of Jupiter, but Saturn, the furthest ...

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In 1616 Galileo announced to his patrons that he had now observed Saturn in yet another shape, and he published this without commentary in his Asayer of 1623.

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