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Fraser
2018-Oct-29, 07:30 PM
The universe wasn’t always such a well-lit place. It had its own Dark Ages, back in the days before stars and galaxies formed. One of the big questions in astronomy concerns how stars and galaxies shaped the very early days of the Universe. The problem is, there’s no visible light travelling through the Universe from …
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Spacedude
2018-Oct-29, 09:31 PM
Interesting graphic of the "dark age" squeezed in between the initial flash of the Big Bang, it's "afterglow" and the first stars & galaxies starting to light up.. I had never really thought of it quite that way before though I knew that it took time for things to cool off and begin forming the first hydrogen atoms/molecules.