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Earth Center Solar System, No Telescope
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Sun Center Solar System, Used Telescope
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Improved Telescope, Modern Science, Sun & Moon
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Discovered a Supernova, Sun & Earth center
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Planetary Motion , Elliptical, Planets Moving ovals
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Gravity, laws of motion, universal functions
Plan projects on a visual timeline
Map milestones, phases, deadlines, and key events in one place so the sequence is easier to see and share. Timetoast is a timeline maker for work, school, research, and stories.