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12 ore 15 min, 1 gen 2018 anni - The formation of first neutral atoms.

Descrizione:

The first were Hydrogen and Helium.

Aggiunto al nastro di tempo:

Cosmic Calendar

11 dic 2017

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Data:

12 ore 15 min, 1 gen 2018 anni

Adesso

~ 7 years and 9 months ago

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