标签：银河系的旅行 相关文章

Supermassive Black Holes 超大质量黑洞 - 1

In March 2000, two astronomers made an extraordinary discovery, one that is set to overturn our understanding of how the universe formed. We're never going to see a time like this in astronomy again.

发表于:2018-12-07 / 阅读(371) / 评论(0) 分类 超大质量黑洞

Supermassive Black Holes 超大质量黑洞 - 2

But we are just one in 125 billion galaxies of different shapes and sizes spinning through space. Yet scientists haven't been able to explain how a single one of these galaxies was created. Galaxy for

发表于:2018-12-07 / 阅读(336) / 评论(0) 分类 超大质量黑洞

Supermassive Black Holes 超大质量黑洞 - 4

This ferocious heart of brilliant hot gas is called a quasar. Scientists thought this whirling mass might be caused by a giant black hole sucking up gas and stars, literally feeding on the center of a

发表于:2018-12-07 / 阅读(290) / 评论(0) 分类 超大质量黑洞

Supermassive Black Holes 超大质量黑洞 - 7

When it's feeding, a giant black hole creates a bright burning gas disk around it and then for some reason, it stops feeding, leaving a dark, deadly core lurking menacingly in the center of the galaxy

发表于:2018-12-07 / 阅读(301) / 评论(0) 分类 超大质量黑洞

【轻松英文阅读】科学家的新发现

Recently, some researchers in Australia were excited about messages from a distant galaxy. But it turns out that the signals were from a completely different source. The scientists at Parkes Observatory in Australia specialize in radio bursts- short

发表于:2018-12-28 / 阅读(47) / 评论(0) 分类 轻松英文阅读

贝克汉姆高价转会

Former captain of the English national football team David Beckham is moving to Los Angeles this summer to play with the LA Galaxy team in the United States Major League Soccer league. As the biggest star ever to play in this league, the 31-year-old

发表于:2018-12-30 / 阅读(59) / 评论(0) 分类 初级商务英语听力2007

Supermassive Black Holes 超大质量黑洞 - 12

This correlation is the most important thing we've learned about supermassive black hole so far. Astronomers are always looking for correlations. Whenever you find one that's really tight like this on

发表于:2019-01-02 / 阅读(376) / 评论(0) 分类 超大质量黑洞

VOA慢速英语2018 科学家观测到巨大星系团的诞生

Scientists Observe Birth of Huge Galaxy Cluster For the first time ever, astronomers have observed the birth of a galaxy cluster, known as a protocluster. The event, billions of light-years away, could form one of the largest-known structures in toda

发表于:2019-01-03 / 阅读(72) / 评论(0) 分类 2018年VOA慢速英语(五)月

TED演讲:从遥远的星系中我们可以学到什么(4)

Here is a computer simulation. 这是计算机模拟。 And we need a way to simplify it. 我们需要简化它的方法。 Well, I like to think about this using an analogy. 我会用一个类比来理解。 If I want to understand the sinking of th

发表于:2019-01-18 / 阅读(58) / 评论(0) 分类 TED演讲商业篇

TED演讲:从遥远的星系中我们可以学到什么(3)

Here is an image. 这是一张照片。 Since galaxy clusters are representative slices of the universe, scaled-down versions. 因为星团可以看做是宇宙的缩小版。 They are mostly made up of dark matter, 它们也是大部分由暗物质构

发表于:2019-01-18 / 阅读(50) / 评论(0) 分类 TED演讲商业篇

英语听力：2013-10-04 地平线：黑洞吞噬—7

It suggested a baffling paradox that quasars are really shining black holes, capable of emitting the energy of entire galaxies. But Lynden-Bell then went further. I predicted that there would be these massive objects found in the nearby galaxies. He

发表于:2019-01-23 / 阅读(70) / 评论(0) 分类 探索与发现2013年

英语听力：2013-09-29 地平线：黑洞吞噬—5

But that is not the only surprise. People began to realize that these tiny star-like things or they looked like stars are actually putting out as much energy as a hundred of galaxies. And they didnt look like a galaxy at all. The paradox was how some

发表于:2019-01-23 / 阅读(66) / 评论(0) 分类 探索与发现2013年

英语听力：2013-11-08 地平线：黑洞吞噬—22

Was there any connection between the two? What Magorian discovered was completed unexpected. The relationship that we find was essentially that the bigger the galaxy, the bigger the black hole. That's in its broad terms. If you want to be a bit more

发表于:2019-01-23 / 阅读(59) / 评论(0) 分类 探索与发现2013年

万物简史 第35期:走进太阳系(13)

Still, statistically the probability that there are other thinking beings out there is good. Nobody knows how many stars there are in the Milky Wayestimates range from 100 billion or so to perhaps 400 billionand the Milky Way is just one of 140 billi

发表于:2019-01-29 / 阅读(63) / 评论(0) 分类 万物简史

VOA常速英语2013--开普勒望远镜危在旦夕

Kepler Telescope's Planet-hunting Days End 开普勒望远镜危在旦夕 NASA is ending its attempts to restore the Kepler Space Telescope to full working order. The US space agency will now focus on analyzing the data collected over the past four y

发表于:2019-02-01 / 阅读(69) / 评论(0) 分类 VOA常速英语2013年(八月)

万物简史 第240期:马斯特-马克的夸克(12)

Almost at once the Bogdanov paper excited debate among physicists as to whether it was twaddle, a work of genius, or a hoax. Scientifically, it's clearly more or less complete nonsense, Columbia University physicist Peter Woit told the New York Times

发表于:2019-02-17 / 阅读(54) / 评论(0) 分类 万物简史

CCTV9英语新闻：CSL ambassador finishes second tour of China

David Beckham is a one-man phenomenon. No modern soccer player has created such intense interest and fan loyalty, while at the same time seeing their image and every move end up in the tabloids. During his one-week tour in China, the Chinese Super Le

发表于:2019-02-18 / 阅读(111) / 评论(0) 分类 CCTV9英语新闻2013年07月

万物简史 第244期:马斯特-马克的夸克(16)

This uncertainty applies, incidentally, to relatively nearby things as much as to the distant edges of the universe. As Donald Goldsmith notes, when astronomers say that the galaxy M87 is 60 million light-years away, what they really mean (but do not

发表于:2019-02-25 / 阅读(105) / 评论(0) 分类 万物简史

万物简史 第184期:爱因斯坦的宇宙(27)

Combining Leavitt's cosmic yardstick with Vesto Slipher's handy red shifts, Edwin Hubble now began to measure selected points in space with a fresh eye. In 1923 he showed that a puff of distant gossamer in the Andromeda constellation known as M31 was

发表于:2019-02-25 / 阅读(112) / 评论(0) 分类 万物简史

生活大爆炸第八季 第94期:阅读彩虹

No. No, no, no. I-I think the cookie thing. 不，不是。我也觉得你是做饼干那种。 Action. 开始。 Welcome back. Our guest today is a returning fan favorite. 欢迎回来。今日的来宾曾来过，并广受观众喜欢： He puts th

发表于:2019-03-16 / 阅读(358) / 评论(0) 分类 生活大爆炸第八季
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