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WonderFact269 of 1,961

The cosmic microwave background is ancient light left over from the early universe.

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Science

Why it matters

The idea in context

The cosmic microwave background is faint light released about 380,000 years after the Big Bang — the oldest light we can see, a baby photo of the universe.

Türkçe

Aynı kart, başka bir dilde.

Kozmik mikrodalga arka plan, erken evrenden geriye kalan kadim ışıktır.

Kozmik mikrodalga arka plan, Büyük Patlama'dan yaklaşık 380.000 yıl sonra salınan sönük bir ışıktır — görebildiğimiz en eski ışık, evrenin bir bebeklik fotoğrafı.

Source trail

Read beyond the card.

Background reading: Cosmic microwave backgroundAttribution and context are revised when stronger evidence appears. Corrections are welcome through the editorial page.
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