标签：Galaxies 相关文章

美国科学60秒 SSS 2013-01-08

This is Scientific American 60 second Science, I am Karen Hopkin, this will just take a minute. There are in fact 100 billion galaxies, each of which contains something like a 100 billion stars. Well, Carl Sagan would have loved to get the latest est

发表于:2018-12-02 / 阅读(67) / 评论(0) 分类 Scientific American(一)月

全新版大学英语听说教程第三册 Unit 13

Unit 13 Part B Text 1 The Big Bang! In the 20th century there were two main theories to explain the origin of the universe, the big bang theory and the steady state theory. The former stated that the universe began in a massive explosion at a single

发表于:2018-12-04 / 阅读(66) / 评论(0) 分类 全新版大学英语听说教程第三册

Scientists Expect ‘Unexpected’ from Largest Ground-based Telescope

Scientists Expect Unexpected from Largest Ground-based Telescope The mirror of the Hubble Space Telescope that gave the world stunning pictures of deep space is about 4.5 square meters. Compare that with the primary mirror of the James Webb Space Tel

发表于:2018-12-16 / 阅读(66) / 评论(0) 分类 VOA标准英语2016年(五月)

2007年NPR美国国家公共电台三月-My Personal Leap of Faith

Welcome to This I Believe, an NPR series presenting the personal philosophies of remarkable men and women from all walks of life. Support for NPR Podcasts comes from Visa, offering the Visa signature card featuring concierge services for travel, din

发表于:2018-12-19 / 阅读(148) / 评论(0) 分类 2007年NPR美国国家公共电台

英文书摘精选 天文学家和癌症研究者共同抗击癌症

Astronomers And Cancer Researchers Work Together To Fight Cancer 天文学家和癌症研究者共同抗击癌症 At first glance, astronomers and cancer researchers may not seem to have a lot in common. After all, astronomers spend their time gazing

发表于:2018-12-28 / 阅读(53) / 评论(0) 分类 初学者听力文摘精选

美国国家公共电台 NPR A 4 Billion Light-Year Journey Ends At The South Pole

MARY LOUISE KELLY, HOST: Scientists announced today that for the first time, they have been able to pinpoint the source of a particle called a high-energy neutrino. It was detected by an observatory at the South Pole. And as NPR science correspondent

发表于:2019-01-08 / 阅读(61) / 评论(0) 分类 2018年NPR美国国家公共电台7月

《科学》杂志编辑关注当今125个重大不解之迷

Science Editors Take a Closer Look at 125 Great Unsolved Mysteries of Our Time 《科学》杂志编辑关注当今125个重大不解之迷 Science Magazine is celebrating its 125th birthday with a sp

发表于:2019-01-09 / 阅读(95) / 评论(0) 分类 VOA2005（下）--环境科学探索

ESL Podcast 605 – Talking About Astronomy

Dad: What are you working on, honey? Mariko: Its a project for school about the Earth and its place in the universe. I have to write a report and build a model of what scientists can see with a telescope in space. Dad: I can help you with that. I was

发表于:2019-01-11 / 阅读(78) / 评论(0) 分类 地道美语播客

VOA慢速英语2011--Is NASA’s James Webb Space Telescope a

Technology Report - Is NASAs James Webb Space Telescope a Time Machine? This is the VOA Special English Technology Report. If you could build a time machine, what would it look like? Maybe, it should look like a telescope. American scientists are bui

发表于:2019-01-12 / 阅读(77) / 评论(0) 分类 2011年VOA慢速英语(五)月

美国国家公共电台 NPR Young Astronaut Hopeful Gets NASA Tour Of His (Space) Dreams

RACHEL MARTIN, HOST: Back in January, we introduced you to the Rahimov family. They had immigrated from Uzbekistan, and we met them on the day they became U.S. citizens in Kansas City, Mo. In that story, we heard 16-year-old Murad Rahimov talk about

发表于:2019-01-16 / 阅读(51) / 评论(0) 分类 2017年NPR美国国家公共电台8月

美国国家公共电台 NPR The Traditional Food Debate Rages On: Latkes Or Hamantaschen?

LINDA WERTHEIMER, HOST: Coke versus Pepsi, French fries versus tater tots, hotdogs versus hamburgers - there are a lot of famous food rivalries, but at the University of Chicago, the real contention is between two traditional Jewish holiday dishes, l

发表于:2019-01-16 / 阅读(92) / 评论(0) 分类 2016年NPR美国国家公共电台12月

美国科学60秒 SSS 2015-06-04

Sorry,there is not text temporarily, Please help tingroom to look for it! 如果您能找到更好的听力原文，请发贴到 听力原文收集区 ，您将会获得 10 到 30 积分的奖励 ! Thank you ！

发表于:2019-01-20 / 阅读(99) / 评论(0) 分类 2015年Scientific American(六)月

2015-04-17 BBC:星光七纪元-26

Thats why what we physicists called pressure. This pressure is created as the particles jostle for position. Its a principle of Quantum Mechanics and when it was applying to stars, the lives of dead white dwarfs suddenly made sense. What stopped them

发表于:2019-01-23 / 阅读(96) / 评论(0) 分类 探索与发现2015年

2015-04-24 BBC:星光七纪元-28

And takes dedication perseverance and a love of the thrill of the chase, not just any kind of astronomer but a supernovae hunter, and one with perfect timing.You know usually nothing much happens in astronomy, stars live for millions or billions of y

发表于:2019-01-23 / 阅读(674) / 评论(0) 分类 探索与发现2015年

英语听力：2013-10-25 地平线：黑洞吞噬—16

To stare into the void of a black hole, to tumble through space before disappearing forever within it, it's the prospect of catching that unique moment that explains the excitement of this year's events. What happens to matter once it's been swallowe

发表于:2019-01-23 / 阅读(91) / 评论(0) 分类 探索与发现2013年

英语听力：2013-11-15 地平线：黑洞吞噬—25

Galaxies could in a way, be much bigger than they currently are. Something is stopping them growing larger and that something is the black hole at the center. Now this is bizarre because the ration of the size of the black hole to the size of the gal

发表于:2019-01-23 / 阅读(74) / 评论(0) 分类 探索与发现2013年

60秒科学:Black Hole Quasar Building Galaxy

Black Hole Quasar Building Galaxy A study in the journal Astronomy Astrophysics finds that a distant quasar, powered by a black hole, is building a galaxy that will eventually surround the black hole. Cynthia Graber reports Which came first, black ho

发表于:2019-01-30 / 阅读(198) / 评论(0) 分类 60秒科学

2007年VOA标准英语-Astronomers Search for Origin of What Cannot be

By Jessica Berman Washington 14 September 2007 Scientists have known for some time that most of the stuff in the Universe is so-called dark matter, material that cannot be seen directly because it does not interact with light. That makes it very diff

发表于:2019-01-31 / 阅读(142) / 评论(0) 分类 2007年VOA标准英语（九月）

VOA常速英语2019--詹姆斯·韦伯望远镜或2021年投入使用

The James Webb telescope is being prepped for launch in 2021 and it will change the way that NASA views the universe. James Webb is designed specifically to look into the infrared, and this is an area of the spectrum where we have looked before, but

发表于:2019-02-18 / 阅读(79) / 评论(0) 分类 VOA标准英语2019年(一月)

科学美国人60秒 SSS Building a Better Mirror for Telescopes

Building a Better Mirror for Telescopes 为望远镜打造更优质镜面 To study the heavens, it's all about the photons. We in astronomy are always greedy. We want every photon we can collect. Drew Phillips, astronomer at University of California

发表于:2019-03-15 / 阅读(229) / 评论(0) 分类 2017年Scientific American(九)月
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