发布日期：2024-12-08 05:24 点击次数：162
义务教育
An international group of scientists has been studying how the structure of the universe has grown over the past 11 billion years.
一个国外科学家小组一直在盘问宇宙的结构在畴昔的110亿年中是何如发展的。
These researchers recently announced findings about how gravity behaves at a very large scale.
这些盘问东说念主员最近晓示了相干重力在大限制下何如发扬的发现。
What they found supports a prediction physicist Albert Einstein made in his 1915 theory of general relativity.
他们的发现救援了物理学家阿尔伯特·爱因斯坦在1915年的广义相对论中作念出的推测。
The findings are part of a years-long study of the history of the universe that has focused on dark energy.
这些发现是对宇宙历史长达数年的盘问的一部分，该盘问的重心是暗能量。
Dark energy is an invisible and mysterious force that is accelerating， or speeding up， the ongoing expansion of the universe.
暗能量是一种看不见的高明力量，正在加快宇宙的握续膨大。
The study's researchers used a year of observations by the Dark Energy Spectroscopic Instrument (DESI) at Kitt Peak National Observatory in Arizona.
这项盘问的盘问东说念主员诈欺亚利桑那州基特峰国度天文台的暗能量光谱仪器（DESI）进行了一年的不雅测。
Gravity is one of the universe's fundamental forces.
引力是宇宙的基本力之一。
Einstein's theory linked space， time and gravity.
爱因斯坦的表面将空间、本事和重力接头起来。
The theory holds that large amounts of mass and energy curve the structure of space-time， influencing the motion of whatever passes nearby.
该表面合计，大宗的质料和能量使时空结构曲折，影响隔邻经由的任何物体的想法。
Dragan Huterer of the University of Michigan was co-leader of the working group that examined the data from DESI.
密歇根大学的德拉甘·哈特勒是盘问DESI数据的职责小组的共同精雅东说念主。
Huterer said: "Einstein's theory of general relativity describes the motion of massive objects in a gravitational field that they create.
哈特勒说：“爱因斯坦的广义相对论描述了大质料物体在它们所创造的引力场中的想法。
It is one of the most successful physical theories that we have." But the announcement in 1998 that the universe's expansion was speeding up raised doubts about Einstein's model.
这是咱们领有的最奏效的物理表面之一。”但1998年宇宙膨大加快的公告激发了东说念主们对爱因斯坦模子的怀疑。
"The discovery of the accelerating universe… led to suggestions that maybe general relativity needs to be modified，" Huterer said.
“加快宇宙的发现……导致东说念主们合计广义相对论可能需要修改义务教育，”哈特勒说。
The new DESI findings revealed gravity is behaving as Einstein predicted that it would.
DESI的新发现揭示了引力的活动正如爱因斯坦所推测的那样。
Scientists say the Big Bang event 13.8 billion years ago began the universe， which has been expanding ever since.
科学家示意，138亿年前的大爆炸事件开启了宇宙，而后宇宙一直在膨大。
They say experiments show the expansion was actually accelerating and dark energy is a possible cause.
他们说，履行标明膨大骨子上正在加快，暗能量是一个可能的原因。
The new DESI findings focused on the growth of what is called the cosmic structure.
DESI的新发现重心温暖所谓宇宙结构的滋长。
It dates to when the universe was about 20 percent of its current age.
它不错回首到宇宙苟简是目客岁龄的20%的时候。
This cosmic structure has a direct connection to the large-scale organization of matter.
这种宇宙结构与大限制的物资组织有径直的接头。
Galaxies， galaxy clusters and even larger galaxy superclusters form a cosmic web or connected networks with large areas of space existing in between.
星系、星系团以至更大的星系超星系团造成了一个宇宙网或连结的聚集，它们之间存在着大面积的空间。
This structure results from the gravitational pull of matter throughout the universe.
这种结构源于系数宇宙物资的引力。
The new study was based on DESI observations of almost 6 million galaxies and their centers， dating back 11 billion years.
这项新盘问是基于DESI对近600万个星系过头中心的不雅测，这些星系不错回首到110亿年前。
The DESI scientists in April released the largest three-dimensional map of the cosmos.
DESI科学家四月份发布了最大的宇宙三维舆图。
They announced findings suggesting that dark energy may not be an unchangeable force.
他们晓示的盘问后果标明，暗能量可能不是一种不行改造的力量。
Instead， it might change over time.
相背，它可能会跟着本事的推移而改造。
Those findings focused on a specific behavior of galaxy clusters.
这些发现聚集在星系团的特定活动上。
The new research expanded what is known about that behavior.
这项新盘问扩展了东说念主们对这种活动的了解。
Mustapha Ishak-Boushaki of the University of Texas at Dallas was a co-leader of the working group.
德克萨斯大学达拉斯分校的穆斯塔法·伊沙克-布沙基是该职责组的纠合教唆东说念主。
He said， "Our DESI data shows that it is in agreement with Einstein's theory of gravity but still favors a dynamical dark energy - and finding these simultaneously is new." The universe includes ordinary matter: stars， planets， gas， dust.
他说：“咱们的DESI数据标明，它与爱因斯坦的引力表面一致，但仍然救援动态暗能量——同期发现这些是新的。”宇宙包括世俗物资：恒星、行星、气体、尘埃。
It also contains dark matter.
它还含有暗物资。
Dark matter is invisible material that might make up about 27 percent of the cosmos.
暗物资是一种看不见的物资，可能占宇宙的约27%。
In addition to that， scientists also believe there is dark energy which might make up 68 percent of the cosmos.
除此以外，科学家还合计暗能量可能占宇宙的68%。
"Dark energy is responsible for the accelerated expansion of the universe.
“暗能量是宇宙加快膨大的原因。
The physical nature of dark energy is at present unknown，" Huterer said.
暗能量的物感性质当今尚不了了，”哈特勒说。
The new findings appear to support the current "standard model" of cosmology that includes the theory of general relativity.
新发现似乎救援了面前的宇宙学“措施模子”，其中包括广义相对论。
The DESI working group involves more than 900 researchers from more than 70 organizations worldwide.
好吊橾在线DESI职责组由来自寰球70多个组织的900多名盘问东说念主员构成。
It is overseen by the U.S. Department of Energy's Lawrence Berkeley National Laboratory.
它由好意思国动力部劳伦斯伯克利国度履行室监督。
The new research was published in the arXiv online database before undergoing the process of peer review.
这项新盘问在经由同业评审之前发布在arXiv在线数据库中。
I'm John Russell.
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