毅力號火星探測器揭開火星的宇宙撞擊史
Perseverance Rover Uncovers Mars' Cosmic Impact History
Updated at: July 16, 2026 at 04:15 AM
NASA的「毅力號」探測車為我們提供了一扇了解火星早期狂暴歷史的絕佳窗口。
NASA’s Perseverance rover has offered an incredible window into the early, violent history of Mars.
透過檢視耶澤羅撞擊坑邊緣一個厚達245英呎、由古老岩石組成的堆疊層「Broom Point成員」，研究人員發現了這裡曾有混亂過往的證據。
By examining the 'Broom Point member,' a 245-foot-thick stack of ancient rock on the rim of Jezero Crater, researchers have uncovered evidence of a chaotic past.
這些岩石可追溯至39億年前，講述了過去頻繁的小行星撞擊如何猛烈衝擊火星地表的故事。
These rocks, dating back over 3.9 billion years, tell a story of frequent asteroid impacts that once pummeled the Martian surface.
與地球上板塊構造不斷循環地殼的情況不同，火星保存了這份古老的記錄，就像是早期太陽系的「宇宙天氣預報」。
Unlike Earth, where plate tectonics constantly recycle the crust, Mars preserves this ancient record, acting as a 'cosmic weather report' for the early solar system.
科學家鑑定出特定的岩石類型，包括角礫岩和玻璃狀珠體，證明這些地層是由高能量碰撞而非火山活動所形成。
Scientists identified specific rock types, including breccias and glassy beads, which prove these layers were forged by high-energy collisions rather than volcanic activity.
水或冰與熔融碎片相互作用的跡象，則暗示了當時存在著複雜且動態的環境。
Signs of water or ice interacting with molten debris suggest a complex, dynamic environment.
毅力號已採集了名為「Bell Island」與「Main River」的岩心樣本，這些樣本將會被送回地球。
Perseverance has collected core samples, 'Bell Island' and 'Main River,' which are destined for Earth.
這些樣本將提供精確的年代測定，幫助我們理解火星以及我們自身行星的演化。
These samples will provide precise dates, helping us understand the evolution of both Mars and our own planet.
