中国开始展开暗物质探索 [英国媒体]

China’s darkmatter probe begins operation

中国开始展开暗物质探



China’s DarkMatter Particle Explorer (DAMPE) has returned its first data to groundstations. Initial assessments indicate everything is working correctly and thespacecraft is now ready to begin a three-year mission.

中国的暗物质粒子探测器将第一批数据输送回地面站。初步分析后表明一切运作正常，现在这艘航天器已经做好准备进行为期三年的任务。

DAMPE, which isalso known as Wukong, after the monkey king in the Chinese fairytale Journey tothe West, blasted off on 17 December from Jiuquan Satellite Launch Center,Gansu province. Carried on a Long March 2D booster, the spacecraft was placedin a 500km-altitude orbit.

这艘暗物质粒子探测器也叫做“悟空”，即《西游记》中的齐天大圣，在12月17号于酒泉卫星发射中心升空。由长征2D火箭发射，该航天器被放置在500公里高的轨道上。

Signals and datareceived shortly afterwards show that the spacecraft is working as expected andthat the data is good quality, accordingto China’s Xinhua News Agency.

之后接收到的信号和数据表明该航空器运行正常，而数据的质量也很高，新华社报道。


GoldenY 8h ago
Is it completelyimpossible that a modification of the law of gravity would mean there is nodark matter?

有没有可能说对万有引力定律进行修改就意味着不存在暗物质呢？

SimonCrase  GoldenY 8h ago
Check out TerryMatilsky's page at Rutgers. He's worked on alternatives to dark matter. He hasan online course Analyzing the Universe, which aims to give students the toolsto answer questions themselves.

看看Terry Matilsky在罗格斯大学的页面。他已经对暗物质的替代品进行研究。他有一个分析宇宙的网络课程，目的是为了让学生自己解决问题。

JamesValencia  GoldenY 3h ago
It's possible,there have been people working on that angle for ages.
It's not nicethough: The theory of gravity works so well ! Making it not work any more makeslots of other problems.

这是可能的，已经有人对这个问题进行长期研究了。
但是并不美好：重力理论运作良好！所以如果推翻重力理论的话，会产生很多其他问题。

palfreyman 20hago
DAMPE was builtby the Chinese Academy of Sciences in collaboration with the University ofGeneva, Switzerland, and Italy’s Istituto Nazionale di Fisica Nucleare.
Nice to seeinternational co-operation in the sciences. Always makes the politcos'blow-harding seem a bit irrelevant compared with the human quest to explore theuniverse, which needs no nationalistic barriers.

“悟空”由中国科学院与瑞士日内瓦大学以及意大利Istituto Nazionale di Fisica Nucleare机构一起合作建成的。
很高兴看到科学领域的国际合作。比起人类探索太空的欲望，政治上的分歧简直无关紧要。宇宙探索不需要民族主义障碍。

quarrytone  palfreyman 19h ago
Indeed. I thinkits high time the US ended its embargo on cooperation with China in spaceexploration. We cooperate with Russia, we should cooperate with China. Evenfiction and Hollywood now has emergency situations where we might have to replyon the Chinese to help, Gravity, The Martian.
If China isserious about Mars in 30 years, we should work with them, all shoulders to thewheel of human endeavor.

确实，我觉得美国现在是时候和中国在太空探索上展开合作而不是继续限制与中国在这方面的合作。我们和俄罗斯合作，所以我们也应该和中国合作。甚至在小说和好莱坞电影中我们都有需要中国提供帮助的时候，比如在《地心引力》和《火星救援》中。
如果未来30年中国真的想要探索火星，我们应该与他们合作。

quarrytone 21hago
Its"amazing" (to quote Brian Cox) that what constitutes 85% of the universeis a complete unknown, a total mystery. So much for the fairly common delusionwe know most everything.
None locality ofmatter, virtual states, what the hell is going on? Even Einstein was deeplytroubled.
Yes, evolutionexplains how we evolved from the family tree of life, but no one, anywhere, canreally explain how the massive complexity of the most primitive life formssuddenly popped into a far too high organisation from the chaos of complexmatter to exist as life. We are as far from explaining that as teleportingpeople inside holiday pods to Alpha Century.

让人感到神奇的是宇宙85%的组成成分还不为人所知。而我们却幻想自己已经知道了几乎所有一切。
物质的具体所在，虚拟状态，到底是什么鬼？甚至爱因斯坦都搞不懂。
也是，进化论解释了我们的生命之树，但是谁也无法解释为什么最原始的生命形式会从复杂物质的混乱状态变成一种更加高级的生命形式。这是目前我们所无法解释的。

DonH  quarrytone 16h ago
"Darkmatter" so far has no more reality than phlogiston. Or "ether".Or we now understand the "force" of gravity. All were superceded bycompletely different understandings that began to make more sense and it maybethat a huge revolutionary shift in physics is presaged by this inexplicable setof facts about galaxy spin etc.

“暗物质”目前来看并不比“燃素”更真实。我们现在对重力的“力量”有所了解。但是人们的认知在不断变化，一系列无法解释的星系事实可能预示着物理学将发生革命性的改变。

quarrytone  DonH 15h ago
I agree, its anempty term, as is dark energy. But 100 years ago we thought we knew most ofwhat existed, now we know we don't know the half of it. Fascinating discoveriesahead, though they seem to merely increase the horizon of mystery.

我同意楼上的看法，这是个空洞的词汇，就想暗能源一样。但是100年前我们以为我们了解了已存的大部分事物，现在我们知道我们根本连一半都不了解。前方还有更多神奇的发现在等待着我们，尽管可能会让我们变得更加迷惑。

CmdrRiker  DonH 15h ago
Of course darkmatter has reality.
What thatreality is, is the question.
Is it containedin Einstein's GR, or is it something new?

暗物质当然有真实
但问题是这种真实是什么
包含在爱因斯坦的相对论里吗，还是说是某种新事物？