The Milky Way | ||
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The Milky Way. The Milky Way is the galaxy in which our sun travels. It is about 80,000 light years across, and about 2,500 light years thick. It contains about 300 billion stars. “Different parts have different ages. The oldest parts of the Milky Way are at 11-13 billion years old, and the disk of the Milky Way is 6-11 billion years old.” (Kurtis Williams’ talk at the Age of the Milky Way Workshop in July of 2007).
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Links about the Milky Way:
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Back to the Geophysical Timeline: Earth, Moon, Rodinia, Proterozoic, Plate Tectonics, Phanerozoic, Paleozoic, Ordovician, Neutron, Sun, Hadean, Galaxy, Fossils, Cryogenian, Continental Shields, Big Bang, Archean. |
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Back to the Biological Timeline: terrestrial animals, trilobite, prokaryote, oxygen catastrophe, Metazoa, eukaryote. |
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Back to the World History Timeline in English | ||
Back to the Historylines home page. | ||
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