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科學好好聽

〈EP.20|尋找外星人的方程式〉

19 May 2025

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本節目提到,天文學家法蘭克·德雷克博士提出「德雷克方程式」,旨在推估銀河系中可能與地球人通訊的智慧生命體所居住的星球數量(N)。方程式包含多個變數,如銀河系中恆星形成的速度、銀河系內擁有行星系統的恆星比例、單一恆星系統中位於適居帶內的行星平均數量等。節目強調,方程式中的「L」,即能進行星際通訊的文明的推估存續期間,尤為重要,暗示文明並非永恆。此外,節目還提到利用NASA克卜勒望遠鏡的觀測數據重新計算德雷克方程式,並粗估銀河系內可能存在一百六十億到兩百億顆地球型行星,其中質量與太陽相當的恆星中,可能每數個恆星就會存在一個「第二個地球」,大大提高了「外星人」存在的可能性。 --- Music from #Uppbeat (free for Creators!): https://uppbeat.io/t/augustine/happy-thoughts (https://click.pstmrk.it/3s/uppbeat.io%2Ft%2Faugustine%2Fhappy-thoughts/vZub/Mhq9AQ/AQ/9a81cc98-33e3-4393-988c-e260893fbecf/4/dtHb1EMCam) License code: 8OVD4G7T97U9LV7C Music from #Uppbeat (free for Creators!): https://uppbeat.io/t/augustine/morning-delight (https://click.pstmrk.it/3s/uppbeat.io%2Ft%2Faugustine%2Fmorning-delight/vZub/Xxq9AQ/AQ/ca281cb2-e180-44ce-940b-77e13433f497/4/LsEyUh3NZJ) License code: TWE91SVFFA9Q2WDW -- Hosting provided by SoundOn

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