There were no planets without moons.
除了卫星外没有行星。
There were no planets without moons. A.
除了卫星外没有行星。
No disks, no planets; and no planets, no life.
没有圆盘，就没有行星；没有行星，就没有生命。
No-one had found a way to calculate accurate distances to the planets from the Earth.
还没有人找到方法来计算从地球到行星的精确距离。
But, unlike the cores of the inner planets, the Moon's core contains little or no iron, while the typical planet-forming materials were quite rich in iron.
但是，与内行星的核心不同，月球的核心几乎不含铁，而典型的行星形成物质则富含铁。
Why has no one from other planets sent us a message?
为什么没有其他星球的人给我们发送信息呢？
He flew to different planets to find the answer, but finally he still had no idea.
他飞往不同星球去找寻答案，但最终还是无果。
I realized that the handrail would not come off, which meant we could no longer be able to replace the power supply and repair that instrument, which meant scientists could no longer look at the universe and find life on other planets.
我意识到，扶手不会脱落，这意味着我们再也无法更换电源供应和维修仪器，这意味着科学家们再也无法观察宇宙，在其他星球上寻找生命。
For instance, some systems could house only Earthlike planets and no gas giants, Gould said.
古尔德说，比如一些星系只拥有类似地球的行星而没有气态巨行星。
When asked could some kind of phenomena occur where planets align in a way that could impact Earth, Nasa says no, not in the next few decades anyway.
当问及是否可能发生某些现象，如行星排列的方式是否可能影响到地球，美国航空航天局说不会的，起码在未来几十年无论如何都不会发生。
Your academics look for life on other planets within your solar system, and because they are different from your Earth, assume that no life exists upon them.
你们的专家在你们太阳系内其他的行星上寻找生命，正因为那些生命形式不同于你们地球上的，才会得出一个“假设”结论——那些行星上面没有生命存在。
The creatures were conceived with hostile extra-terrestial environments in mind, including planets colder than -150C, salty oceans underneath layers of ice and giant gas planets with no solid ground。
一望无际的海洋被层层坚冰覆盖。 还有的星球充满气体、没有陆地。
"We think it has no atmosphere to redistribute the heat," Hatzes told CNN from Barcelona, Spain, where he is attending the "Pathways Towards Habitable Planets" conference.
“我们认为那上面没有大气以重新分配这个热量”，Hatzes参加了一个在西班牙巴塞罗那举办的“通往可居住星球之路”大会，他在巴塞罗那接受了CNN的采访。
He concludes that there is no reason that larger bodies, such as planets, could not do the same.
他得出结论说，没有理由认为那些大的物体，比如行星，不能(像光子)这样。
According to Burisch, some of the subsequent visitors were future humans who were (at that future time) based on other planets, and no longer on the future Earth.
据布里奇说，一些随后的来访者是(在那个未来时刻)其他行星上的未来人，也不会在未来的地球上了。
"If you think about free-floating planets, there's no nearby star that can produce heat and energy... but even in our solar system, there are [externally frigid worlds] that have hot cores," he said.
“如果你琢磨不受约束自由漫游的行星，想到它附近没有能够提供热量和能量的恒星……但即便在我们太阳系，都会有炙热的核心，更不用说那些寒冷的地方。”他说。
If you look to the stars tonight, consider this: No matter how innumerable they may seem, there are far more planets than stars lurking out there in the darkness, a new study suggests.
一项新研究说：如果今晚你仰望星空，那么仔细想想，不管它们多么的数不尽数，仍然会有比它们多得多的行星潜藏在黑暗中的某个角落。
A lost generation of planets may now be no more than a whiff of pollution in the atmospheres of their dead parent stars.
死去的一代行星如今可能已经变成了其死亡母星大气中的一丝污染物。
So far there is no proof that UFOs or spaceships from other planets do exist.
究竟有没有不明飞行物或来自其他行星的宇宙飞船，迄今为止尚无法证实。
Finding rocky material means the stars once had the raw ingredients to make exoplanets-although almost no known planets orbit stars inside of clusters.
岩石物质的发现意味着恒星内有制造行星的原材料——尽管几乎没有已知的行星围绕星团里的恒星转动。
Though human spacers are the most well known inhabitants of the Corellian star system, they are by no means the only ones who call the system of five planets home.
虽然科雷利亚星系中最广为人知的居民是人类，他们却不是称这个五星球系统为家的唯一种族。
However, there is no total loss as we can transfer them to other planets to continue their evolution.
但是没有全部消失，其实我们把他们转移到了其他的行星之上继续它们的进化之旅。
Throw my rings freely towards unknown but mysterious planets, I have no comprehension about my actions.
我，望着那未知的行星，尽情地飞掷着更多的彩环。
There was no gainsaying the astronomer's knowledge about the planets.
这位天文学家对于行星的知识是毋庸置疑的。
Small, icy objects such as Pluto are no longer regarded as planets, but in any case, they would be undetectable around another star.
天文学家们已经不再把小型，冰状天体，比如冥王星已被规为行星了，但无论如何，它们围绕其它恒星时是无法探测到的。
There was no gainsaying the astronomer's knowledge about the planets.
这位天文学家对于行星的知识是无须置疑的。
There was no gainsaying the astronomer's knowledge about the planets.
这位天文学家对于行星的知识是无须置疑的。
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