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黑洞是密度超大的星球,吸纳一切,光也逃不了.(现在有科学家分析,宇宙中不存在黑洞,这需要进一步的证明,但是我们在学术上可以存在不同的意见)

补注：在空间体积为无限小（可认为是0）而注入质量接近无限大的状况下，磁场无限强化的情况下黑洞真的还有实体存在吗？
或物质的最终结局不是化为能量而是成为无限的场？

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Astronomers in the United States and France said Wednesday they had spotted galaxies which were formed just 500 million years after the "Big Bang" that created the Universe, some 250 million years earlier than the oldest galaxy observed so far. Their technique is based on so-called redshift, a phenomenon in which the wavelength of light stretches out as its source recedes.

As the Universe has never stopped expanding since the Big Bang some 13.7 billion years ago, the theory is that the "redder" the light, the farther -- and older -- its source.

Last September, a team led by Japanese astronomer Masanori Iye said it found a galaxy with a redshift of seven, suggesting that the star cluster formed around 12.7 billion years ago, or 750 million years after the Big Bang.

Reporting in the US publication Astrophysical Journal, watchers led by Daniel Stark of the California Institute of Technology (Caltech), say they found six galaxies with a redshift of nine, equivalent to a post-Bang birth of 500 million years.

The team, which included astronomers at the Astrophysics Laboratory in Marseille, southern France, used the giant 10-metre (32.5-feet) Keck telescope in Mauna Kea, Hawaii, over three years.

They finetuned the search by exploiting a phenomenon called gravitational lensing.

Under this, the gravitational force of nearby galaxies bends and focuses the light from more distant clusters.

"We identified six youthful galaxies that were actively forming stars and were located at a distance corresponding to the time when the universe was only 500 million years old, or less than four percent of its current age," said French astronomer Jean-Paul Kneib.

阿尔伯特·爱因斯坦提出了“虫洞”理论。那么，“虫洞”是什么呢？简单地说，“虫洞”是连接宇宙遥远区域间的时空细管。它可以把平行宇宙和婴儿宇宙连接起来，并提供时间旅行的可能性。

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We won’t be visiting a supergiant planet any time soon. But physicists are about to do the next best thing, and creat the conditions that exist inside the most dense planets right here on Earth. What used to require a nuclear explosion should now be possible with diamond anvils and powerful lasers.

Researchers from the Lawrence Livermore National Laboratory (LLNL), New Mexico State University and France’s Atomic Energy Commission announced this week that they have achieved pressures of 10 million atmospheres using a 30 kilojoule ultraviolet laser. The next step will be to use a 2 megajoule laser to achieve more than a billion atmospheres of pressure. Just for comparison, the centre of the Earth squeezes with a little less than 4 to 5 million atmospheres, and the centre of Jupiter is 70 million atmospheres.

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        月球又称“月亮”。在望远镜发明之前，古代的人们只能在晴朗的夜晚，用眼睛仰望皎洁的明月。看到月亮表面有明有暗，形状奇特，于是人们就编出如嫦娥奔月、吴刚伐桂、玉免捣药等美丽神话。古希腊人则把月球看作美丽的狩猎女神阿尔忒弥斯，并且把女神狩猎时从不离身的银弓作为月球的天文符号。

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         通过一般光学望远镜观测太阳，观测到的是光球层（太阳大气层的最里层）的活动。在光球上经常可以看到许多黑色斑点，叫太阳黑子。太阳黑子在日面上的大小、多少、位置和形态等，每日都不一样。太阳黑子是光球层物质剧烈运动形成的局部强磁场区域，是光球层活动的重要标志。长期观测太阳黑子就会发现，有的年份黑子多，有的年份黑子少，有时甚至几天，几十天日面上都没有黑子。天文学家们早已注意到，太阳黑子从最多（或最少）的年份到下一次最多（或最少）的年份，大约相隔11年。也就是说，太阳黑子有平均11的活动周期，这也是整个太阳的活动周期。天文学家把太阳黑了最多的年份称为“太阳活动峰年”，把太阳黑子最少的年份称为“太阳活动宁静年”。

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          在遥远的东南海外，有一个羲和国，国中有一个异常美丽的女子叫羲和，她每天都在甘渊中洗太阳。太阳在经过夜晚之后就会被污染，经过羲和的洗涤，那被污染了的太阳，在第二天升起的时候仍会皎洁如初。这个羲和，实际上是传说中的上古帝王帝俊的妻子，她生了十个太阳，并且让这十个太阳轮流在空中执勤，把光明与温暖送到人间。这十个太阳的出发地十分荒凉偏僻，那地方有座山，山上有棵扶桑树，树高三百里，但它的叶子却像芥子一般大小。树下有个深谷叫汤谷，这是太阳洗浴的地方。它们洗浴完了，就藏在树枝上擦摩身子。每天由最上边的那一个骑着鸟儿巡游天空，其他的便依次上登，准备出发……

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         关于后羿的神话传说很多。相传后羿生来就有射箭的天才，长大后更是臂力惊人，箭法超群。原先天空中有10个太阳，强烈的阳光烤焦了大地，庄稼枯死了，甚至连石头都快要熔化了，海水如同开水一样沸腾起来。人们在灼热的阳光下几乎喘不过气来，凶狠的毒蛇野兽乘机出来残害人类。羿十分同情处于痛苦煎熬的民众，决心冒着生命危险，为民除害。这位擅长射箭的好汉，选择一处高地，张弓搭箭，对准天空一箭射去，只听“轰隆”一声巨响，一个太阳被射中了。后羿一连射了9箭，9个太阳一个个地掉落下来。当他还想再射时，突然想到，如果没有太阳，大地将一片黑暗，人类难以生存，便留下最后一个太阳，让它造福于人类。

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