一光年的距离大得令人难以想象。
总说，你我之间那一光年的距离。
一光年就是光行走一年所通过的距离。
一光年到底有多远。
一光年大约6百亿亿英里，即光行走一年的距离。
A light-year is about 6 trillion miles, the distance light travels in a year.
没有人会那么说，一光年是距离单位不是时间单位。
No one would say that. A light year is a unit of distance not time.
一光年的爱恋已到了尽头，如何让我们死去的爱重生？
A light-year love already has come to an end, how to let we die of love rebirth?
确实只有很短的距离，但那时我却感到距离了一光年似的。
A short distance, to be sure, but at the time it felt like a light year.
右边的怪物，实际上是无生命的气体和尘埃柱，据测长度超过一光年。
The monster, on the right, is actually an inanimate pillar of gas and dust that measures over a light year in length.
玛提斯认为“复仇者”距太阳有25000个天文单位(或者说三分之一光年)。
Matese estimates Nemesis is 25,000 AU away (or about one-third of a light year).
玛提斯认为“复仇者”距太阳有25000个天文单位(或者说三分之一光年)。
Matese estimates Nemesis is 25, 000 AU away (or about one-third of a light year).
一光年是提升到玻璃馆创建一个小城市的空白，提供从周围的邻居杂波救济。
A light glass pavilion is elevated to create a small urban void, providing relief from the clutter of the surrounding neighbourhood.
仅在黑洞的一光年范围内就云集着另外十多万颗恒星，处在它更牢固的掌控之中。
Within just a light-year of the black hole swarm more than 100,000 other stars caught far more firmly in its grip.
奥尔特云是一个由粉尘和冰组成的庞大云带，据信它距离太阳约一光年，许多穿越我们太阳系的彗星都来自那里。
The Oort cloud is a vast belt of dust and ice that is believed to lie around one light year from the Sun and is the origin of many of the comets that pass through our solar system.
奥尔特云是一个由粉尘和冰组成的庞大云带，据信它距离太阳约一光年，许多穿越我们太阳系的彗星都来自那里。
Thee Oort cloud is a vast belt of dust and ice that is believed to lie around one light year from the Sun and is the origin of many of the comets that pass through our solar system.
科学家已经提出，这颗隐藏的暗行星，他们将它命名为“Nemesis”，可能存在于距离我们的太阳大约一光年的地方。
Scientists have already proposed that a hidden star, which they call 'Nemesis,' might exist a light-year or so away from our sun.
到2011年为止，因为这个超新星进入了星球消亡的新阶段，所以这环物质中心直径大约是一光年的碎片燃烧的更加强烈了。
By 2011 debris in the center of the ring, which is about a light-year in diameter, was blazing more intensely as the supernova entered a new stage of stellar demise.
你知道一光年是什么吗？没有在世界中旅行比光快的速度。它旅行每秒300,000公里。一光年是距离光在一年内旅行。
Do you know what a light year is? Nothing in the world travels faster than light. It travels 300,000 kilometers a second. One light year is the distance that light travels in one year.
如果我当上科学家，最想发明的东西就是UFO, U FO的速度非常快，最高是每分钟一光年，这样人类就可以乘ufo探索宇宙的奥秘。
If I when the scientists, most want to invent thing that UFO, UFO very fast speed, the highest is a light-year per minute, so humans can take a UFO to explore the mysteries of the universe.
第一个是一对质量与木星差不多的行星，这对行星步调一致地围绕距离地球15光年的母恒星旋转。
The first is a pair of planets, each about the mass of Jupiter, that whirl around their home star 15 light years from Earth in perfect lockstep.
从一端到另一端，银河系布满星星的圆盘横跨12万光年，可以用肉眼和光学望远镜观察到。
From end to end, the Milky Way's starry disk, observable with the naked eye and through optical telescopes, spans 120,000 light-years.
那意味着我们最近的邻居星球离我们大约有100光年远，从天文学的角度来说，这几乎是一墙之隔。
That means that our nearest neighbours are perhaps 100 light years away, which is almost next door in astronomical terms.
低温气体和尘埃长长的卷须从渐行渐远的电离前沿一直延伸到数光年远的太空。
A long tendril of colder gas and dust extends many light years into the void from the receding ionization front.
利用这项技术，他们测出距地球约63光年的一颗行星大气中含有甲烷。
They used it to detect methane in the atmosphere of a planet nearly 63 light-years away.
这些恒星非常紧密地簇拥在一个直径大约150光年的球型空间里，他们在这个星团中旋转，直至生命耗尽。
These stars are packed so closelytogether in a ball, approximately 150 light-years across, that theywill spend their entire lives whirling around in the cluster.
麒麟座内升起的锥状星云，高度达到7光年，外形好似一个镶满宝石的王冠。
As if to don a crown of heavenly jewels, the Cone Nebula rises 7 light-years into the Monoceros constellation.
的确，就在50光年之外的一个恒星系统中，可能发生过类似的情况。
Indeed, something similar may have happened in a solar system just 50 light-years away.
的确，就在50光年之外的一个恒星系统中，可能发生过类似的情况。
Indeed, something similar may have happened in a solar system just 50 light-years away.
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