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。
In time, we will want to dispatch spacecraft that will go into orbit around these alien planets, land robots on their moons, and even return rock and soil samples back to Earth.
迟早，我们将发送飞船进入环绕那些陌生行星运转的轨道，让机器人在它们的卫星上降落，甚至将岩石和土壤样品送回地球。
Earth seems to have its first fuzzy photos of alien planets outside our solar system, images captured by two teams of astronomers.
根据两个天文组拍到的照片，地球上的人似乎第一次拍到了太阳系外行星的模糊影像。
Earth seems to have its first fuzzy photos of alien planets outside our solar system, images captured by two teams of astronomers.
根据两个天文组拍到的照片，地球上的人似乎第一次拍到了太阳系外行星的模糊影像。
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