Until now, scientists have only been able to analyse the atmospheres of such distant worlds using the Hubble and Spitzer space telescopes, which are in orbit around the Earth.
到目前为止,科学家仅能利用环绕地球飞行的哈勃或斯皮策太空望远镜,来分析如此遥远星球的大气层成分。
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The Keck Observatory has been invaluable in detecting extrasolar planets, worldsaround other stars that were long postulated but only detected in the last dozen years or so.