Until recently most astronomers believed that the space between the galaxies in our universe was a near-perfect vacuum.
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。
I guess that would be fair to say I spend most of my time studying the big bang theory and where our universe came from.
我想，公平地说，我花了大部分时间研究大爆炸理论和我们的宇宙从何而来。
I guess that would be fair to say I spent most of my time studying the Big Bang theory and where our universe came from.
准确说，我大部分时间都在研究宇宙大爆炸理论和宇宙的起源。
In fact, 24 per cent of our galaxy elemental mass consists of helium, which makes it the second most abundant element in our universe.
事实上，银河系中24%的元素质量是由氦组成的，这使它成为宇宙中第二丰富的元素。
The big question is whether that has already happened - is our universe a designer universe?
一个大问题就是这是否已经发生过——我们的宇宙是被设计好的宇宙吗？
After our universe has gone black, perhaps another (or many others) will carry on life's flame.
当我们的宇宙归于死寂时，可能另一个宇宙(或是许多个)将会承袭原来的生命架构。
Einstein described our universe in four dimensions: the three dimensions of space and one of time.
爱因斯坦用四度空间来描述我们的宇宙：其中三个是空间的，还有一个是时间的。
In a new study, researchers suggest that if our universe has siblings, we may have bumped into them.
在一项新研究中，研究人员认为，如果我们所处的宇宙有着同胞兄弟，我们可能会撞上它们。
Maybe psychologists, like quantum physicists, will have to deal with the deep strangeness of our universe.
也许心理学家，如同量子物理学家一样，必须要解开我们宇宙的深度奥秘。
Some spheres may contain different realizations of our universe, while others may have different physical laws.
有的球形含有我们的宇宙的不同实现，而其他的球形可能有着不同的物理定律。
This book is provocative pop science, an exploration of the latest thinking about the origins of our universe.
这本书反映颇具争议的流行科学，即最新潮的关于宇宙起源问题的思考。
Before we discuss which of these three pictures describe our universe (if any) we must make a few disclaimers.
在讨论上述三个我们所处宇宙的可能形态前，我们必须作出若干免责声明。
Now, new pictures reveal the first light from objects 13 billion light years away, the infants of our universe.
如今，新的图片显示出了在宇宙婴儿时期，由130亿光年远处的星体所发出的第一缕光。
One of the key scientific questions in cosmology today is: what is the average density of matter in our universe?
今天宇宙学的一个关键问题就是：宇宙中物质的平均密度是多少？
Could our universe be a membrane floating in higher dimensional space, repeatedly smashing into a neighbouring universe?
我们所处的宇宙是否可能只是漂浮在更高维数空间上的一层薄膜，它反复地撞击到邻近的宇宙。
There are a number of free parameters in this family of Big Bang models that must be fixed by observations of our universe.
在这个大爆炸模型里有一系列的自由参数必须由我们的对宇宙观测数据来确定。
It isn't that man was created in God's image - rather that our universe was created, more or less, in the image of its designers.
人类不是由上帝创造的——而差不多是宇宙的设计师创造了我们的宇宙。
The new collider is the world’s biggest science experiment, created purely to give us a better understanding of our universe.
粒子对撞机的启动是世界上最大的试验，旨在深入我们对宇宙的了解。
The prediction comes from the theory of eternal inflation, which says our universe is just one of an infinite number of universes.
这项预测来自于“永恒通膨”理论，大意就是我们的宇宙是很多宇宙的其中之一。这就涉及到一个概率计算的问题了：既然是很多宇宙，咱们的宇宙啥时候是个头呢？
However, it's rare to find antimatter in our universe, since it annihilates almost instantly when it comes into contact with matter.
然而，在我们的宇宙里很少找到反物质，因为一旦它碰到正物质，即刻就会湮灭掉。
Stojkovic says the theory of evolving dimensions represents a radical shift from the way we think about how our universe came to be.
斯托伊科维奇博士表示，维度变化的理论将彻底转变人们对宇宙演变的认识和想法。
In our universe, the down quark is about twice as heavy as the up quark, resulting in neutrons that are 0.1 percent heavier than protons.
在我们的宇宙中，底夸克的质量大约是顶夸克的两倍，造成中子比质子重大约0.1%。
According to the big bang model, our universe is made up of around 4% of normal (atomic) matter; 22% dark matter and 74% dark energy.
根据大爆炸模型，宇宙构成中，常规物质(原子)只占4%，暗物质占22%，暗能量占74%。
Given that we live in a world with three spatial dimensions, the poincare conjecture tells us ultimately what shape our universe could be.
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。
This process slowed down as our universe gradually cooled, but there should have been equal parts matter and antimatter -- and there weren't.
湮灭的过程随着我们的宇宙慢慢冷却下来而逐步减慢，物质和反物质本应该一样多，但实际上不是的。
So the upshot is that the fundamental constants we measure in our universe are likely to differ from the constants measured in the multiverse.
因此结论是我们的宇宙中测到的基本常量与多元宇宙中测到的常量可能不同。
By further analyzing the meteorite, researchers hope to understand its chemical evolution and create a timeline of the chemistry of our universe.
科学家们希望通过进一步分析这块陨石能了解其化学演变，并为我们宇宙的化学制出一条时间轴。
WE CANNOT see what lies beyond the visible horizon of our universe, simply because light emitted beyond that horizon has not had time to reach us.
所以我们不能看到宇宙里可见视野之外，仅仅是因为在超越视野之外的物体所发射的光线已经没有时间来送达给我们。
The possibility of a multiverse comes from inflation theory, the idea that our universe went through a rapid expansion shortly after the big bang.
多重宇宙存在的可能性，来自于膨胀理论，即我们的世界产生于一次宇宙大爆炸后的短时扩张。
The possibility of a multiverse comes from inflation theory, the idea that our universe went through a rapid expansion shortly after the big bang.
多重宇宙存在的可能性，来自于膨胀理论，即我们的世界产生于一次宇宙大爆炸后的短时扩张。
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