伊莉絲‧卡茲: 地球的傾斜為什麼如此重要？

地球的傾斜為什麼如此重要？

在四十五億年前，地球被和火星差不多大的岩石撞擊，岩石的飛行速度約每秒九公里。這次撞擊的力量讓地球表面暫時變成一片熔岩海洋。現今，有些科學家將這次宇宙撞擊稱為「巨大撞擊」。而我們仍然在這次撞擊的影響之下。伊莉絲‧卡茲要來探討地球傾斜度的重要性。

導演：伊格‧柯瑞克（Artrake Studio）
旁白：貝瑟妮‧卡特摩爾‧史考特
音樂：山姆‧米西里歐格魯

A colossal collision billions of years ago knocked Earth off its axis, gifting our planet a 23.5-degree tilt. This subtle angle, kept steady by the moon’s gravitational pull, is what gives rise to the cycle of seasons. Even minor changes in this tilt have triggered ice ages and shaped the planet’s climate. Without it, Earth could freeze over, losing the balance that makes life as we know it possible.

Earth’s Tilt Is the Hidden Engine Behind Life’s Rhythms

Earth’s unique tilt was born from a colossal impact 4.5 billion years ago, when a Mars-sized rock struck our young planet and set it spinning at an angle. This seemingly small tilt—23.5 degrees—drives the seasons, shapes climate patterns, and keeps Earth habitable for life as we know it. Even minor shifts in tilt have triggered ice ages, while losing it entirely could plunge our planet into a permanent deep freeze. The moon’s gravitational pull helps stabilize this delicate balance, making life on Earth possible.