A planet lighter than a ball of cork is one of the puffiest alien planets known to date.
根据数据已知，比一个软木塞球还轻的行星是最膨胀的外行星之一。
But Kepler, which hunts by looking for transiting planets, has already identified more than 700 "candidates" — stars that may harbor alien planets.
通过寻找凌星行星，开普勒已经确定了700多个”候选恒星“——可能有外行星的恒星。
That trend will likely continue, Jenkins said, as data keeps pouring in from Kepler — which was launched in March 2009 to search for Earth-like alien planets — and other telescopes.
詹金斯表示，这一趋势将会继续，因为开普勒——2009年3月发射以寻找类似地球的外星球——和其他望远镜持续不断的传来数据。
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