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12 h 15 m, 1 ene 2018 año - The formation of first neutral atoms.

Descripción:

The first were Hydrogen and Helium.

Añadido al timeline:

Cosmic Calendar

11 dic 2017

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fecha:

12 h 15 m, 1 ene 2018 año

Ahora mismo

~ 7 years and 9 months ago

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