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12 ч 15 мин, 1 янв 2017 г. - Neutral atoms

Описание:

The first neutral atoms that were formed, 400,000 years after the Big Bang.

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Cosmic calendar

15 дек 2017

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12 ч 15 мин, 1 янв 2017 г.

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~ 8 гг и 9 мес назад

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