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科學好好聽

〈EP.19|金星:地球的姊妹星〉

18 May 2025

Description

本節目概述了金星獨特的地質特徵,指出儘管金星與地球在大小和質量上相似,但缺乏類似地球的全球性板塊構造。內容提到金星的地殼厚度與地球相近,並提出一種新的地殼循環模式;地表主要由火山活動主導,80%覆蓋熔岩平原,並分布多種火山結構;撞擊坑稀少且隨機,支持一次全球性地表重塑事件的假說;金星雖無全球板塊,但有局部構造活動,可能由地函對流驅動;其內部結構類似地球但無明顯磁場,可能因外核缺乏對流;地表亦受風蝕與化學風化影響;最後,大氣同位素證據顯示金星遠古可能有液態水,未來探測任務將進一步釐清這些地質謎團。 --- 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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