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began between 13 and 14 billion years ago
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he temperature of the expanding universe cooled to approximately 10 billion degrees
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Quasars form in the erly ages of the galaxy formation
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enormous clouds that eventually collasped to become glaxies and clusters of galaxies
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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.