如果无线电波真的能够穿透宇宙空间的话，它有什么问题呢？
If the radio waves are so good at getting through the universe, what's the problem?
直到最近，大多数天文学家都认为我们宇宙中星系之间的空间是近乎完美的真空。
Until recently most astronomers believed that the space between the galaxies in our universe was a near-perfect vacuum.
宇宙包含我们所知的所有空间和时间，所以要求用大爆炸模型解释我们视界之外的宇宙超出了这个模型的限定范围。
The universe encompasses all of space and time we know, so it is beyond the realm of the Big Bang model to postulate what the universe beyond our horizon is.
这种正统的宇宙观现在正受到天文学家的挑战。天文学家认为，一场巨大的气体“雨”正从星系周围所谓的空无一物的空间落入许多星系中。
This orthodox view of the universe is now being challenged by astronomers who believe that a heavy "rain" of gas is falling into many galaxies from the supposedly empty space around them.
她的回答是“宇航服其实就是一个小宇宙飞船，里面有放食物和水的空间，还有一个垃圾收集系统。”
Her answer is "the spacesuit is really a small spacecraft with room for food and water-containers, and a waste-collection system."
她的回答是:“宇航服其实就是一个小宇宙飞船，里面有放食物和水的空间，还有一个垃圾收集系统。”
Her answer is "the spacesuit is really a small spacecraft with room for food and water containers, and a waste-collection system."
立方体卫星（CubeSat）的研究人员认为，由于有机会进入属于自己的小宇宙空间的人前所未有地多了起来，现在是时候考虑一下其带来的意料及计划外的后果了。
CubeSat researchers suggest that now's the time to ponder unexpected and unintended possible consequences of more people than ever having access to their own small slice of space.
两个宇宙飞行器在外层空间对接并交换宇航员。
The two space vehicles docked in space and exchanged astronauts.
但假如时间和空间都不是基本性质，那么什么是宇宙的基本性质呢？
But if space and time aren't fundamental, what are the fundamental properties of the Universe?
时间与空间的弯曲贯穿整个宇宙，其中的起伏就是重力波，它自起源处向外散发。
Gravitational waves are fluctuations in the curvature of space and time which propagate through the universe as gravitational waves — outward from its source.
其起源的主要解释之一是空的空间含有一些固有的能量向外推动宇宙。
One of the leading explanations for its origin is that empty space contains some intrinsic energy that pushes the universe outward.
由于宇宙中缺少明显的距离标识，在空间中确定一个遥远的物体的位置需要大量的工作。
Determining where a distant object lies in space takes a bit of work, because the universe lacks clear distance markers.
给出我们生活的这个世界的三维空间，庞加莱猜想能够告诉我们我们的宇宙的形状。
Given that we live in a world with three spatial dimensions, the poincare conjecture tells us ultimately what shape our universe could be.
就是这样，你需要永远不停地改变我们对于空间、时间、事物和宇宙的理解。
That's it, that's all you need to change forever our understanding of space, time, matter, and the universe.
然而，宇宙空间中的距离如此遥远，以致光线到达我们的眼睛需要更多时间。
However, the distances in space are so vast that it takes more time for light to reach us.
然而，这些设计的主要缺陷在于，这些宇宙飞船通常体积很大，其中包含了大量无用的空间。
However, the mainshortfalls of these types of vehicle are that they are often very largeand contain a lot of empty space.
因此如果宇宙无限大，就有可能存在无数的平行空间。
So if the universe is infinitely large, it is also home to infinite parallel universes.
但这种现象在东南（左上）更为明显，奇幻的宇宙尘埃在这富饶的星云空间弥散开来。
But this view sweeps farther to the east (left) and north (top) detailing subtler cosmic clouds of gas and dust scattered through the fertile, nebula rich region.
我们认为宇宙是，无限空间里有很多星球。
Well, we think about the cosmos as being a bunch of different spheres in an infinite space.
作为父亲的埃德斯坦回答：“有的。 空间中会有氢原子不断地撞击宇宙飞船。”
The father responded that yes, there would be hydrogen bumping off a spaceship.
宇宙飞船在空间与卫星对接。
从这个角度看，我们周围的这些平面空间可能是暗能量的一个来源，而正是它让宇宙加速膨胀。
From this point of view these flat Spaces around us turn out to be one possible source of dark energy for the accelerating expansion of the Universe.
数字宇宙的基础是我们能够展示的我们的空间—也就是在天穹中所展示的我们的主要空间。
The Digital Universe is the basis of our space show productions that we do -- our main space shows in the dome.
那是水星表面，空间环境，地球化学和排列（MESSENGER）宇宙飞船进入的画面。
That's where the Mercury Surface, Space Environment, Geochemistry and Ranging (MESSENGER) spacecraft enters the picture.
那是水星表面，空间环境，地球化学和排列（MESSENGER）宇宙飞船进入的画面。
That's where the Mercury Surface, Space Environment, Geochemistry and Ranging ( MESSENGER) spacecraft enters the picture.
现在我们从理论上假设有两个或更多的宇宙重叠在一起，重叠的方式很简单，一个空间维度恰巧分别碰上所有其它宇宙的爱因斯坦时间维度。
Let us now theoretically suppose there are two or more Universes overlapping in a simple way that one spatial dimension coincides with Einstein's time dimension of all others, respectively.
辐射来自于外层空间（宇宙射线），以及在土壤，水和空气中的天然放射性物质。
The radiation comes from space (cosmic rays) as well as natural radioactive materials found in the soil, water and air.
这将会成为“高”对于任何数量的空间操作、空间、建筑和商业化，它可能是一个“太空船坞”的《星舰迷航记》的宇宙。
This would be the "high ground" for any number of space operations, space manufacturing, construction and commercialization; it could be a "space dock" straight out of the Star Trek universe.
对宇宙飞船的船员来说，速度升高到光速，宇宙空间将被高度压缩，因此增加了撞击飞船的氢原子数量。
For the crew of a spacecraft ramping up to light speed, interstellar space would appear highly compressed, thereby increasing the number of hydrogen atoms hitting the craft.
对宇宙飞船的船员来说，速度升高到光速，宇宙空间将被高度压缩，因此增加了撞击飞船的氢原子数量。
For the crew of a spacecraft ramping up to light speed, interstellar space would appear highly compressed, thereby increasing the number of hydrogen atoms hitting the craft.
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