水桶系在什么上？
为什么科学家认为某些东西可能隐藏在我们太阳系的边缘之外？
Why do scientists think something could be hidden beyond the edge of our solar system?
我们太阳系的其他行星缺乏氧气大气层，这有助于解释为什么地球上存在生命。
Other planets in our solar system lack the oxygen atmosphere that helps explain why life exists on Earth.
那用什么坐标系来计算这个积分呢？
这个访问团应该回答冥王星到底是什么，无论如何它仍存在的一些问题，并且它如何与太阳系家族相册合适？
The mission should answer some lingering questions about just what is this Pluto thing anyway and how does it fit in the solar system’s family album?
在我经过花园走到大路上时，在一个墙上钉了一个系缰绳用的铁钩的地方，我看见一个白的什么东西乱动，显然不是风吹的，而是另一个什么东西使它动。
In passing the garden to reach the road, at a place where a bridle hook is driven into the wall, I saw something white moved irregularly, evidently by another agent than the wind.
也许，这一点是相当明显地。而这也是为什么在这种特殊的关系系，双方的爱正在流逝。
An obvious point, perhaps; but yet another reason why the love is draining out of a special relationship.
是的，赫德是一名退休的美国大学艺术系教授，他经常会忘记熟人长得什么样。
Yeah, Hurd is a retired arts professor of US and he often forgets looks of acquaintances.
这一理论严谨地解释了为什么太阳系中这一部分的大多数物体都是冰岩混合物，而土星的光环却近乎都是冰块。
The theory neatly accounts for why Saturn's rings are nearly pure ice, while most objects in that part of the solar system are more an ice-rock blend.
一天下午，在戈麦斯·帕拉·西奥市的写作研系习班上，一个男孩问我为什么我要写诗歌，我构思多长时间才下笔写。
One afternoon, at the writing workshop in gomez Palacio, a boy asked me why I wrote poetry and how long I thought I would go on doing it.
“那么什么是太阳系呢？”管理员又问。
这次研究的合作者说，火星的迅速形成可以解释为什么它的体积那么小的原因，可以说它是我们太阳系内的侏儒行星了。
Mars’s rapid formation might help explain why it is so small –the runt of the planetary litter among inner worlds in our solar system –say the study’s co-authors.
他说：“我不知道为什么这一场流感被称为墨西哥猪流感，”而实际上，这种病毒的基因组与欧亚系的相吻合。
"I don't know why it's being called the Mexican swine flu," he said, when, actually, the virus's genome matches a Euro-Asiatic strain.
你将看到什么——你们将不得不完美地在这里旋即进入，在几个不同的星等的星系间坠落后到我们所看到的太阳系。
What you're going to see — you're going to have to jump in here pretty quickly between several orders of magnitude to get down to where we see the solar system.
你可能会想，天文学已经够复杂了，天文学家为什么还给系外行星取些把人搞晕的名字？
Astronomy is complicated enough as it is, so you might wonder why astronomers give exoplanets such confusing names.
为什么戴安娜在超速的汽车里布系安全带？
对那些来接受心理辅导的病人,我还是总想多“做”些什么,而不是单纯“陪”着他们,然而我不断震惊于两心相系所带来的治疗力量,这种力量产生于全身心陪伴在一个人的身边,默默地给予理解和支持。
With therapy clients I am still pulled by the need to do more than be, yet repeatedly struck by the healing power of connection created by being fully there in the quiet understanding of another.
回想一下20世纪50年代和60年代初，科幻作家和火箭科学家们编织太阳系或更远的太空旅行故事时，太空时代究竟发生了什么？
Whatever happened to the space age as imagined back in the 1950s and early ’60s, when science fiction writers and rocket scientists spun tales of travel out in the solar system and beyond?
9月23日发布的美国国家航空航天局超级计算机模拟图像表明，对于一个外星人，如果在现在和几百万年前用红外技术观察我们的太阳系，都会看到什么景像。
NASA supercomputer simulations released September 23 suggest what our solar system may look like to an alien using infrared technology now—and millions of years ago.
我们要知道，它们之间的关系是什么,把dA设为xy坐标系的面积元素，dA就是，取决于顺序也许就要写成。
So, we want to understand, what's the relation between, let's call dA the area element dxdy in xy coordinates. So, dA is dxdy, dydx maybe dydx depending on the order.
网站询问了一些专家对于这一争论的想法，这一争论不仅对天文学家看待太阳系的立场有所影响，也跟学校的孩子们用什么记忆术去背诵行星表大有关系。
Asked some experts to weigh in on this debate, which affects how astronomers view the solar system, as well as how complicated schoolchildren's planet-memorizing mnemonics must be.
“如果你问起我们这里大部分学生和教职员工，他们可能根本就不知道计算机上在运行什么”，奥斯汀联合大学计算机系的指导员Herb Coleman说。
"If you were to ask, most of our students and faculty members, they don't even know it's on there," said Herb Coleman, instructional computing director of Austin Community College.
惯性系…什么是静止？以太吗？
在伊朗，领带，无论多好看，都不招人稀罕（详见为什么伊朗人都不系领带）。
音乐可以是愉快的，悲伤的，浪漫的，催眠的，疯狂热烈的，治愈系的，音乐可以是各式各样的。那么它到底是什么？由你决定！
Music can be happy, sad, romantic, sleepy, furioso, healing-all kinds of things. But what is it? It's up to you!
生命若在太阳系其他地方引起相当的影响，那些对它们具有生死关键的相对化学元素丰度，无论是什么，很可能暴露它们的存在。
If life has had a comparable impact elsewhere in the solar system, the relative abundances of chemicals key for its survival -whatever they may be -could betray its presence.
但是如果将来有任何新的关于宇宙空间中的生命的声明，在火星上或者太阳系里其他什么地方——那么就会有疑问产生了。
But if there will be any new statements about life in space, on Mars or in the solar system - there are doubts.
但是如果将来有任何新的关于宇宙空间中的生命的声明，在火星上或者太阳系里其他什么地方——那么就会有疑问产生了。
But if there will be any new statements about life in space, on Mars or in the solar system - there are doubts.
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