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Galileo Galilei Discovers the Moons of Jupiter and the Phases of Venus
History of Astronomy timeline | Timetoast timelines
Origins of Astronomy
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7 ancient astronomical instruments you may not know about - Education
Astrolabe, magnificent computer of the Ancients—an instrument used to
This is very old Islamic astronomical instrument called Astrolabe but
SCIplanet - The Arabs and the Advancement of Astrolabes
Ancient Indian Astronomy and Heritage Sites - Edge Of Space