英語聽力 學英語,練聽力,上聽力課堂! 注冊 登錄
> 在線聽力 > 英語高級聽力 > 探索世界之超大質(zhì)量黑洞 >  第10篇

探索世界之超大質(zhì)量黑洞 Supermassive Black Holes 10

所屬教程:探索世界之超大質(zhì)量黑洞

瀏覽:

手機版
掃描二維碼方便學習和分享
https://online2.tingclass.net/lesson/shi0529/0008/8449/10.mp3
https://image.tingclass.net/statics/js/2012

If, as it now seems, every single galaxy has a black hole at its heart, this can't be a coincidence. Perhaps black holes are an essential part of what galaxies are and how they work.

No one had expected that black hole size and galaxy size could possibly be related. It suggested some mysterious invisible connection between a galaxy and its black hole. But what this was was a mystery scientists would have to wait three years to solve.

The first breakthrough came when a new instrument was added to Hubble Space Telescope. This dramatically accelerated the discovery of new black holes, giving scientists a wealth of new potential leads to follow. For three years the data has been coming down to Earth. Amongst those who've been sifting through it, are two young competing researchers. What they were to discover this year would turn the world of cosmology on its head.

Everyday I go to work, I don't really know what's going to happen, but I can count that it's going to be something exciting every single day.

These past six months have been phenomenal in terms of black hole research. We've been extremely excited we were finding these black holes in, in, in numbers that we had never been able to do before.

Karl Gebhardt and Laura Ferrarese were trying to find the fundamental connection linking black holes and their galaxies. So they searched through all the different galaxy characteristics, looking for any new links that might give a clue. But it wasn't until they looked at the property called sigma that the mystery began to unravel.

Sigma is just a very, very fancy name for something that's actually very simple.

Sigma is the speed at which the stars are circling in the outer reaches of the galaxy. The stars at the edge of the galaxy are so far away from the black hole that they are completely unaffected by its gravity.

wealth: an abundance or profusion of something desirable

unravel: investigate and solve (a mystery or puzzle)

用戶搜索

瘋狂英語 英語語法 新概念英語 走遍美國 四級聽力 英語音標 英語入門 發(fā)音 美語 四級 新東方 七年級 賴世雄 zero是什么意思成都市格瀾威爾英語學習交流群

網(wǎng)站推薦

英語翻譯英語應急口語8000句聽歌學英語英語學習方法

  • 頻道推薦
  • |
  • 全站推薦
  • 推薦下載
  • 網(wǎng)站推薦