Space: After the Big Bang it took 380,000 years for the univer…

Question

Did you know? After the Big Bang it took 380,000 years for the universe to cool enough to form atoms. Only at that moment could light travel through space — what we now call the "cosmic microwave background", an echo still measurable everywhere.

Accepted Answer

After the Big Bang it took 380,000 years for the universe to cool enough to form atoms. Only at that moment could light travel through space — what we now call the "cosmic microwave background", an echo still measurable everywhere.

Na de oerknal duurde het 380.000 jaar voordat het universum koel genoeg was om atomen te vormen. Pas op dat moment kon licht door de ruimte reizen — wat we nu de "kosmische achtergrond-straling" noemen, een echo die overal nog meetbaar is.

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