哥白尼和开普勒在第谷的观察数据基础上发现，我们并不是这个宇宙的中心，其它行星围绕着太阳旋转，我们的地球也是如此。
Copernicus and Kepler built on the observations of Tycho Brahe and found that we were not the center of the universe; other planets revolved around the sun, and so do we.
美国太空行星探测器开普勒又朝人类迈向宇宙的计划前进了一大步。
KEPLER, America’s planet-hunting space probe, is now really getting into its stride.
我们更关注黑洞和宇宙的起源而非赚钱或开靓车。
We are more interested in black holes and the origin of the universe than with making tons of money and driving flashy cars.
这是开普勒团队首次宣称的地球大小的行星候选星，在2009年3月，开普勒团队曾发射一艘一吨重的宇宙飞船去寻找像地球一样可能存在生命的行星。
This is the first announcement of a candidate Earth-size planet by the Kepler mission, which in March 2009 launched a one-ton spacecraft to search for planets like ours that just might harbor life.
美国国家航空航天局的“开普勒”宇宙飞船发现了与地球大小接近的三颗新行星。
NASA's Kepler spacecraft has discovered three new planets that are close to earth's size.
“一个充满物质的宇宙会收缩至一个小——但有限——的尺寸然后又反弹开，产生我们今天看到的膨胀的宇宙，”他说。
"A universe filled with matter will contract down to a small—but finite—size and then bounce out again, giving us the expanding cosmos we see today, " he says.
“一个充满物质的宇宙会收缩至一个小——但有限——的尺寸然后又反弹开，产生我们今天看到的膨胀的宇宙，”他说。
"A universe filled with matter will contract down to a small—but finite—size and then bounce out again, giving us the expanding cosmos we see today, " he says.
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