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(59) / 评论(0) 分类 Scientific American(一)月

Twice a year, day and night, fall into balance, lasting for nearly equal length. Known as equinoxes, Latin for equal night, they occur in March and September and along with solstices mark the changing of seasons as Earth travels around the sun. Astro

发表于:2018-12-03 / 阅读(88) / 评论(0) 分类 自然百科2008年

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(58) / 评论(0) 分类 全新版大学英语听说教程第三册

AMERICANMOSAIC-ChicagoArchitectJeanneGangNamedMacArthurFellowforherStriking DOUG JOHNSON: Welcome to AMERICAN MOSAIC in VOA Special English. (MUSIC) Im Doug Johnson. Today we listen to new music from the Red Hot Chili Peppers And we visit an unusual

发表于:2018-12-16 / 阅读(69) / 评论(0) 分类 2011年VOA慢速英语(九)月

Rare Astronomical Event to Occur June 5-6 Skywatchers on all seven continents will get a chance to witness an astronomical rarity on June 5 or 6, the transit of the planet Venus. It is likely the last time anyone alive today will have a chance to vie

发表于:2018-12-16 / 阅读(62) / 评论(0) 分类 VOA标准英语2012年(六月)

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(44) / 评论(0) 分类 初学者听力文摘精选

Mother of Hubble Always Aimed for Stars Back in the 1950s few women in the United States worked outside of the home, and even fewer earned doctorate degrees or went on to have professional careers. However, as the first chief of astronomy at the U.S.

发表于:2019-01-14 / 阅读(65) / 评论(0) 分类 VOA标准英语2011年(八月)

Earth's 'Bigger, Older Cousin' Maybe Doesn't Even Exist AUDIE CORNISH, HOST: Ever since astronomers started to detect planets beyond our solar system, they've been trying to find another world just like Earth. A few years ago, they announced that the

发表于:2019-01-16 / 阅读(81) / 评论(0) 分类 2018年NPR美国国家公共电台5月

RACHEL MARTIN, HOST: Astronomers are building the world's largest digital camera to capture images of the night sky. This thing is two stories tall, a scientific marvel. So of course NPR's science correspondent Joe Palca traveled to California to che

发表于:2019-01-16 / 阅读(71) / 评论(0) 分类 2017年NPR美国国家公共电台11月

Why The Discovery Of An Earth-Like Planet Is Such A Big Deal play pause stop mute unmute max volume 00:0001:32repeat repeat off Update Required To play the media you will need to either update your browser to a recent version or update your Flash plu

发表于:2019-01-16 / 阅读(84) / 评论(0) 分类 2016年NPR美国国家公共电台9月

Yesterday, astronomers announced that theyve discovered seven Earth-sized planets all orbiting the same star. The findings were published in a journal Nature. NASA says this is a record number of these kinds of planets orbiting this kind of star. It

发表于:2019-01-19 / 阅读(72) / 评论(0) 分类 CNN美国有线新闻2017年3月

Astronomers have searched far and wide for a planet that are the right size and in the right place to support life. Well, maybe they should have set their sight a little close to the home. Because a new study suggests there may be earth-like planet j

发表于:2019-01-20 / 阅读(67) / 评论(0) 分类 Scientific American(二)月

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(96) / 评论(0) 分类 2015年Scientific American(六)月

Could these be the neutron stars predicted by Z? astronomers nicknamed them pulsars and immediately set their telescopes searching for further clues about them, just a year later, they found one, in the perfect place to put Z's theory to the test.In

发表于:2019-01-23 / 阅读(78) / 评论(0) 分类 探索与发现2015年

Scientists Renew Effort Looking for Intelligent Alien Life 科学家们重新努力寻找外星智慧生命 After the 1982 megahit E.T. the Extraterrestrial, the search for alien intelligent life was much in focus. And although no evidence has yet be

发表于:2019-02-01 / 阅读(49) / 评论(0) 分类 VOA常速英语2013年(八月)

A total of eight highly sophisticated scientific equipment will travel to the moon with the Change 3 lander and rover. As soon as they touchdown, they will start sending back a great deal of first hand data to Chinese scientists for further analysis.

发表于:2019-02-04 / 阅读(88) / 评论(0) 分类 CCTV9英语新闻2013年12月

Shaw, listed by Forbes as a billionaire, was also a generous philanthropist who was knighted by Britain's Queen Elizabeth in 1977 for his public service as a long-time backer of the Red Cross. 40 years ago he established the Shaw Foundation which is

发表于:2019-02-05 / 阅读(69) / 评论(0) 分类 CCTV9英语新闻2014年01月

Searching the Heavens for Mountains In the last few decades, astronomers have discovered thousands of exoplanets orbiting other stars. Now, scientists want to know what they look like. Do they have oceans? Atmospheres? Researchers have even searched

发表于:2019-02-14 / 阅读(58) / 评论(0) 分类 2018年科学美国人3月

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(71) / 评论(0) 分类 VOA标准英语2019年(一月)

This is AP News Minute. President Trump has delayed the State of the Union address until the partial government shutdown ends. House Speaker Nancy Pelosi had objected to the speech during the shutdown. Trump said on Twitter no other location could co

发表于:2019-02-21 / 阅读(144) / 评论(0) 分类 美联社新闻一分钟2019(一)月