NASA 望遠鏡發現古老太陽系天體
NASA Telescopes Discover Ancient Solar System Objects
Updated at: September 9, 2026 at 02:45 AM
在一項非凡的突破中，NASA揭示了窺探我們宇宙歷史的新窗口。
In a remarkable breakthrough, NASA has unveiled a new window into our cosmic history.
透過結合哈伯與詹姆斯·韋伯太空望遠鏡的獨特優勢，天文學家成功觀測了27個被稱為「海王星外天體」（TNOs）的微小古老物體。
By combining the unique strengths of the Hubble and James Webb Space Telescopes, astronomers have successfully observed 27 tiny, ancient objects known as Trans-Neptunian Objects (TNOs).
這些遙遠的冰冷天體運行在海王星之外，就像實實在在的時間膠囊，保存了45億年前的狀態。
These distant, icy bodies orbit far beyond Neptune and act as literal time capsules, preserving conditions from 4.5 billion years ago.
儘管其中一些天體的直徑小至5公里且極其黯淡，但這些望遠鏡仍設法捕捉到關於其組成成分與軌道的數據。
While some are as small as 5 kilometers in diameter and incredibly faint, the telescopes managed to capture data on their composition and orbits.
令人驚訝的是，這項研究顯示這些微小天體的數量比科學家預測的要少，這暗示我們現有的行星形成理論可能需要修正。
Surprisingly, the study revealed fewer of these small objects than scientists had predicted, suggesting that our current theories on planet formation may need refining.
藉由比較自太陽系誕生以來未受干擾的「冷」TNO，以及被巨大行星推向外圍的「熱」TNO，研究人員正拼湊出塵埃與礫石最初開始聚合形成今日行星的神秘時代。
By comparing 'cold' TNOs, which have remained undisturbed since the solar system's birth, with 'hot' TNOs, which were pushed outward by giant planets, researchers are piecing together the mysterious era when dust and pebbles first began to coalesce into the planets we know today.
