Saturn's ring. Historical artwork of Saturn's ring by the Dutch physicist and astronomer Christiaan Huygens (1629-1695). In 1655, Huygens discovered that what Galileo had called Saturn's ears was in fact a ring. He published this discovery in a coded form in 1656. He reprinted the code (seen above Saturn) in Systema Saturnium of 1659, along with a clear statement of his discovery (below Saturn). Part of this statement was that Saturn has a ring, thin, flat, nowhere attached". It is now known that Saturn has a number of flat rings formed from numerous tiny ice-covered rocks. The rings are held in orbit around the planet's equator."
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Creative#:
TOP10242232
Source:
達志影像
Authorization Type:
RM
Release Information:
須由TPG 完整授權
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N/A
Property Release:
N/A
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No
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