Scientists attribute the phenomenon to dark energy, a force that repels gravity.
科学家将这个现象归因于暗能量——与万有引力相抵触的一种力。
Much effort focuses on how the density of dark energy changes as space expands.
很多精力都集中在研究宇宙膨胀过程中暗物质密度如何变化。
We've had all kinds of surprises: dark matter, dark energy, inflation, things like that.
我们有过各种各样的惊喜：暗物质，暗能量，宇宙膨胀，诸如此类的事情。
The finding may help shed light on an even more bizarre aspect of the universe? Dark energy.
这一发现可能能够对于解释宇宙中更奇异的存在——暗能量有所帮助。
Dark energy creates a repulsive force that counters gravity and is now tearing apart space-time.
暗能量产生一种与万有引力相反的排斥力，这种排斥力推动着宇宙膨胀。
And the prime evidence for dark energy doesn't come from the cosmic microwave background, either.
而暗能量的首要证据也并非来自宇宙微波背景。
Overall, dark energy is thought to contribute 73 percent of all the mass and energy in the universe.
总的来说，一般认为暗物质占据了宇宙中73%的质量和能量。
The lack of a good explanation for dark energy hasn't seemed to dampen scientists' enthusiasm for it.
缺乏对暗能量的完善解释似乎并未浇熄科学家的热情。
So far, one of the biggest challenges for dark energy researchers is marrying observations to theory.
迄今为止，暗能量研究人员面临的最大挑战是把观测到的现象与理论紧密联系起来。
If dark energy does exist, then it ultimately causes the expansion of the Universe to accelerate.
如果说暗物质真的存在，那将最终导致宇宙膨胀速度的加快。
It is hardly surprising that something called dark energy is hard to study. It is important, though.
一种叫暗能的东西很难研究，这并不足为奇，尽管它很重要。
Salamon also stressed that current NASA missions have already played a key role in measuring dark energy.
萨拉蒙还强调当前的美国国家航空航天局任务在暗能量测量方面发挥了重要作用。
This is to pin down dark matter and dark energy-the 95% of the universe the Standard Model doesn't explain.
这场较量的目的是理解暗物质和暗能量——在宇宙中占95%却无法用标准模型解释。
In other words, it's a bit like cosmology's dark energy: something is going on, but no one has any idea what.
换句话说，它有点像宇宙学所说的暗能量：有些事情正在发生，但没有人知道那到底是什么。
And there seems to be plenty of it: recent estimates say that the universe is more than 70 percent dark energy.
暗能量应该有很多，最新的判断结果是：宇宙的70%都由暗能量构成。
Dark energy is the name given to whatever mysterious force is causing the universe to accelerate as it expands.
暗能量是一种神秘的力，它使得我们的宇宙加速膨胀。
Around three-quarters is "dark energy", which creates a force that is speeding up the expansion of the universe.
另外的大约四分之三是“暗能量”，它产生了促使宇宙不断膨胀的力量。
Whether dark energy has retained its value throughout the history of the universe is an important clue to its nature.
在贯穿宇宙的历史中，暗能量是否保持它的值对于它的本性来说是很重要的信息。
Dark energy is even more of a challenge: it comes neither from known particles nor from the empty space between them.
暗能量的研究则更加富有挑战性：它既不来自于已知的任何粒子，也不来自于粒子之间的真空区域。
Knowing the distribution of dark energy tells astronomers that the Universe will continue to get bigger indefinitely.
对暗能量分布的认知告诉天文学家宇宙将继续无限制地变大。
Some researchers have started using it to explain away the twin cosmological mysteries of dark matter and dark energy.
一些研究者已经开始利用它来解释暗物质和暗能量这两个伴生的宇宙学之谜。
Even more surprising, measurements show that dark energy accounts for about 74 percent of the substance of the universe.
更惊人的是，测量显示暗能量占宇宙物质的74%。
"For one, the Hubble Space Telescope has weighed in on dark energy by virtue of the measurements of supernovae," he said.
“例如，在超新星测量方面具有优势的哈勃太空望远镜已被用于暗能量项目，”他说。
The findings could help astronomers understand more about dark matter, as well as its even stranger sibling? Dark energy.
这些结果可以帮助天文学家更好地理解暗物质，以及更加扑朔迷离的暗能量。
Debate about the exact nature of the dark side of the Universe - the dark matter and dark energy - continues to this day.
但宇宙的阴暗面(暗物质、暗能量)的本质究竟是什么，各方争论至今。
The universe is expanding, being thrust apart by some mysterious "dark energy", minute traces of which pervade all space.
宇宙在一种神秘的“暗能量”的作用下，分崩离析，不断膨胀；这种暗能量虽然含量极微，却遍布宇宙各个角落。
Evidently, dark energy can't have been much stronger than it is today lest it prevent matter from coalescing to form galaxies.
明显地是，暗能量不会超出目前的强度，以避免其阻止物质混合形成星系。
Dark energy causes the acceleration by pushing space itself apart, altering the distances to the supernovas as it does so.
暗能通过推进空间分离而加速，因此就像所观察到的那样加大了距离。
Without the dark energy needed to explain the acceleration, the universe would have only a quarter of the necessary density.
没有需要的暗能来解释加速度的话，宇宙就只有应有密度的四分之一。
Without the dark energy needed to explain the acceleration, the universe would have only a quarter of the necessary density.
没有需要的暗能来解释加速度的话，宇宙就只有应有密度的四分之一。
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