NASA 確認系外行星數量已超過 6,000 顆
NASA Confirms Over 6,000 Exoplanets
Updated at: September 15, 2026 at 02:09 PM
2025年9月17日，美國國家航空暨太空總署（NASA）正式宣布了一項歷史性的成就：已證實的系外行星數量已突破6,000顆。
On September 17, 2025, NASA officially announced a historic achievement: the number of confirmed exoplanets—planets orbiting stars beyond our own Sun—has surpassed 6,000.
這一里程碑象徵著太空探索領域的巨大躍進，距離1990年代初期的首次明確發現僅過了三十多年。
This milestone marks a dramatic leap in space exploration, occurring just over thirty years after the first definitive discoveries in the early 1990s.
發現的速度令人瞠目結舌；儘管直到2022年才達到5,000顆行星，但科學家僅用三年時間就識別出隨後的1,000顆。
The pace of discovery has been staggering; while it took until 2022 to reach 5,000 planets, scientists identified the next 1,000 in only three years.
此資料庫由NASA系外行星科學研究所維護，追蹤了各式各樣令人驚嘆的世界，範圍從巨大的「熱木星」到岩石質的超級地球。
This database, maintained by the NASA Exoplanet Science Institute, tracks an incredible variety of worlds, ranging from massive 'hot Jupiters' to rocky super-Earths.
今日，重點正轉向分析這些遙遠世界的氣體層與潛在的適居性。
Today, the focus is shifting toward analyzing the atmospheres and potential habitability of these distant worlds.
