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12 ore 15 min, 1 gen 2017 anni - The formation of first neutral atoms

Descrizione:

Hydrogen and helium are made

Aggiunto al nastro di tempo:

Cosmic calendar

14 dic 2017

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547

Data:

12 ore 15 min, 1 gen 2017 anni

Adesso

~ 8 years and 9 months ago

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