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A terasecond (symbol: Ts) is 1 trillion (1 × 1012) seconds, or roughly 31,558 years. This page lists time spans above 1 terasecond. * Shorter times ==Teraseconds== * 12 Ts (379,000 years) – the time that elapsed after the Big Bang before the cosmic microwave background radiation (CMBR) was emitted * 31.688 Ts (1 million years) – one epoch; about the average lifespan of a blue supergiant star * 80 Ts (2.54 million years) – approximate time needed for light to travel from the Andromeda Galaxy to the Milky Way〔 〕 * 82 Ts (2.6 million years) – estimated duration of the Paleolithic Period * 130 Ts (4 million years) – estimated average lifetime of biological species * 137 Ts (4.32 million years) – one mahayuga, or 12,000 divine years, in Hindu mythology * 850 Ts (27 million years) – estimated duration of the Silurian Period 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Terasecond and longer」の詳細全文を読む スポンサード リンク
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