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- Three undergraduate students, from Leiden University in the Netherlands, have discovered an extrasolar planet. 来自荷兰莱顿大学的三名本科生已经发现了太阳系外行星。
- Three Dutch undergraduates discovered this extrasolar planet, which is about five times larger than Jupiter. 三名荷兰大学生发现了一颗太阳系外的行星，它约有木星大小的五倍。
- Explanation: Do extrasolar planets have water? 说明： 太阳系外的行星上有水吗？
- Astronomers used Hubble to make the first visible-light snapshot of an extrasolar planet and to explore an exoplanet's atmosphere. 天文学家使用哈勃第一次获得了系外行星的可见光图像并且探索了该行星的大气。
- A hydrogen atmosphere was discovered on the extrasolar planet Osiris by the Hubble Space Telescope, the first atmosphere detected on an extrasolar planet. 2001年，哈博空间望远镜在外太阳系行星欧西里斯（古埃及司阴府之神）上发现了一种氢气体，这是第一种在外太阳系行星上发现的气体。
- The search for extrasolar planets has been going on for32 years. 寻找太阳系以外的星球已经进行三十二年了。
- And then you have to convince the whole world that you have actually detected something like this in the atmosphere of an extrasolar planet host star somewhere in 100 parsec away from here. 再来你必须说服整个世界，你的确侦测到像这样的物质，在太阳系外行星的宿主恒星大气中，在离这里100秒差距的地方。
- Probing the atmosphere of another extrasolar planet, Hubble discovered carbon dioxide and methane, organic compounds that, under the right circumstances, can be by-products of life processes. 基于对其他系外行星大气的探索，哈勃发现二氧化碳，甲烷，有机物在一定得环境下能创造出生命的进程。
- The planet is one of three extrasolar planets orbiting the young star HR 8799, which lies 130 light-years away. 这个行星是绕着年轻恒星HR 8799运行的三个系外行星中的一员，这个恒星距离地球130光年。
- Since 1995, when astronomers spotted the first planet in orbit around another normal star, the number of extrasolar planets, or "exoplanets," has swelled to over 200. 自从1995年天文学家了第一个天外星球以来，太阳系外新行星的数量已经增长到200多个。
- Extrasolar Planet Twice as Big as Jupiter 太阳系外行星大小是木星两倍
- The recent discovery of numerous extrasolar planets confirms that our solar system is not unique. 从最近发现的大量太阳系以外的行星,可以确定我们的太阳系并非独一无二的。
- The fact that Spitzer can detect light spectra from extrasolar planets at all is a surprising accomplishment in itself. 实际上“斯必择”能探测到太阳系外行星的光谱本身对它来说就是了不起的成就。
- Kepler will search for extrasolar planets using the same transit technique pioneered by ground-based telescopes. “开普勒”太空望远镜将通过类似穿越搜索技术，使用地面望远镜展开搜寻，寻找系外行星。
- Now NASA is planning to use a spacecraft to find other extrasolar planets by observing their transits. 目前nasa正计画由探测船观察凌日来寻找太阳系外行星。
- So far, only a handful of extrasolar planets, or exoplanets, have had their pictures taken directly. 到目前为止，我们仅仅获得了少数几个太阳系外行星的直接照片。
- Among the 270 extrasolar planets discovered so far, there is probably one living world, according to Sasselov. 根据莎塞洛夫研究判断，在目前所发现的270颗太阳系外行星中，很有可能存在一颗有生命迹象的星球。
- The discovery of extrasolar planets is closely related to the search of extraterrestrial life. 太阳系外行星系统的发现与地外生命搜索研究是密不可分的。
- But if you want to know about a life on extrasolar planets you have to do this job. 但是，如果你想知道一个太阳系外行星上的生命，你就必须这麽做。
- Astronomers used Hubble to conduct a census of Jupiter-sized extrasolar planets residing in the bulge of our Milky Way Galaxy. 天文学家使用哈勃在银河系隆起的区域调查了太阳系外的类木行星。
