A short distance, to be sure, but at the time it felt like a light year.
确实只有很短的距离，但那时我却感到距离了一光年似的。
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).
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)。
The monster, on the right, is actually an inanimate pillar of gas and dust that measures over a light year in length.
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。
It's about 2 light-years long and half a light-year wide. It's located about 2, 000 light years away in the direction of the Constellation Cygnus.
它大约有2光年长、半光年宽，位于天鹅座方向，距地球约2,000光年。
The distance of a light year boggles the imagination.
一光年的距离大得令人难以想象。
No one would say that. A light year is a unit of distance not time.
没有人会那么说，一光年是距离单位不是时间单位。
Do you know the light year? Nothing in the world travels faster than the light.
你知道光年吗？在这个世界上，没有什么比光传播得快。
Know astronomical unit and light year are used for expressing the distance between celestial bodies.
知道天文单位和光年是用来丈量天体之间距离的单位。
For their research, scientists spent five years studying 166 Sun-like stars within 80 light year - or 470 trillion miles - of Earth.
研究中，科学家们用五年时间分析计算了166个距离地球80光年(470兆英里)以内的类日恒星。
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.
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。
As a reasonable guess, they might, on an average, be 100 light years away. a light year is the distance which light travels at 186,000 miles per second in one year, namely 6 million million miles.
据合理推算，外星人离我们平均距离也有100光年之远(1光年是光以每秒186,000英里的速度在一年内走的距离即6万亿英里)。
Light year means the distance that light covers in a year.
光年是指光在一年时间里所跑过的距离。
Within just a light-year of the black hole swarm more than 100,000 other stars caught far more firmly in its grip.
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。
For a crew to make the 50, 000-light-year journey to the centre of the Milky Way within 10 years, they would have to travel at 99.999998 per cent the speed of light.
要在10年内飞行50000光年到达银河系中心，飞船速度必须达到光速的99.999998%。
A light-year means how far light travels in one year.
一光年就是光行走一年所通过的距离。
More than one million light-year!
超过一百万光年！
The visible universe contains at least 10100 bits of entropy, which could in principle be packed inside a sphere a tenth of a light-year across.
整个可见宇宙起码含有10100位元的熵，这麽多的熵原则上可以塞进直径为1/10光年的圆球内。
In that same year when I was first awed by the concept of a light-year, aflood (known as the Great Flood of August '75) occurred near my home village.
在我首次对光年的概念产生敬畏的同一年，我家乡村庄附近发生了洪水（1975年8月河南大洪水）。
It spans about 3,000 light-years in diameter, compared to the Milky Way's 100,000 light-year diameter.
它的直径大约为3000光年，而银河系的直径有100000光年。
Light - year is an astronomical unit.
光年是一个天文单位。
Light - year is an astronomical unit.
光年是一个天文单位。
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