Last Updated：2025/11/22

(astronomy) All the electromagnetic radiation entering the Earth from non-point sources in deep space.

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cosmic background radiation

Source Word

cosmic background radiation

uncountable

(astronomy) All the electromagnetic radiation entering the Earth from non-point sources in deep space.

Japanese Meaning

（天文学）深宇宙の非点状の天体（例：宇宙全体に広がる微弱な背景放射）から地球に入射する全ての電磁放射

The astronomer carefully measured the cosmic background radiation to trace the universe's earliest fluctuations.

その天文学者は、宇宙の初期の揺らぎをたどるために、深宇宙から地球に届く点源ではない電磁放射（宇宙背景放射）を注意深く測定した。

Sense（1）

(astronomy) All the electromagnetic radiation entering the Earth from non-point sources in deep space.