标签：Astronomers 相关文章
VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. I'm Bob Doughty. VOICE TWO: And I'm Barbara Klein. This week, we will tell about planets orbiting stars other than the Sun. We will remember a huge disaster that struck four years ago. A
VOA慢速英语2008年（十二）月
Facing a rebellion from fellow House Republicans over his debt ceiling plan, Speaker of the House John Boehner took a hard line today, trying to drum up more support. NPR's David Welna reports Boehner postponed a House vote on his plan until tomorrow
2011年NPR美国国家公共电台7月
On December 25, 2000, many people across North America received a rare Christmas treat when the moon passed in front of the sun resulting in a partial solar eclipse. Solar eclipses occur when the moon passes between the Earth and the sun, and the moo
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VOICE ONE: I'm Barbara Klein. VOICE TWO: And I'm Bob Doughty with EXPLORATIONS in VOA Special English. This week, we tell about a project to identify images of one million galaxies that have been captured by the Sloan Digital Sky Survey. We also tell
VOA慢速英语2007年（八）月
New Body Clock Provides Clues to Aging From VOA Learning English, this is Science in the News. Im June Simms. And Im Jim Tedder. Today we tell about a newly-discovered body clock that provides clues to aging. We hear how learning new skills may help
2013年VOA慢速英语(十二)月
The US House passed a broad 50-billion-dollar income tax relief package today, including incentives for alternative energy production. NPR's Debbie Elliott has more. The bill extends popular and non-controversial tax incentives, ranging from expense
2008年NPR美国国家公共电台五月
By Marilyn Christiano Broadcast: December 23, 2003 (THEME) ANNOUNCER: EXPLORATIONS -- a program in Special English by the Voice of America. (MUSIC) Today, Richard Rael and Tony Riggs tell the story of
VOA2003（下）-美国人文故事
This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. In 1930 astronomer Clyde Tombaugh discovered the dwarf planet Pluto while looking at photographs of the night sky. Pluto was the first object to be found
Scientific American(六)月
For astronomers who study the large-scale structure of the universe, dwarf galaxies have proven quite vexing. Because the leading model of cosmology has been unable to account for their relative lack of substance. Now scientists writing in the journa
Scientific American(一)月
Part 4. Language study and language appreciation. Listen to the following statements you have learned in the previous and present units. Pay special attention to the parts in bold part. Learn to appreciate and use the language. 1. to reduce the sprea
Step by Step 3000 第二册
Australian astronomers have discovered the closest potentially habitable planet found outside our solar system so far a super-Earth located just 14 light years away. 澳大利亚的天文学家发现了太阳系外的一个潜在的宜居星球。这颗
阅读空间
Science and technology 科学技术 Investigating the asteroids 小行星探测 Dawn's early light 黎明号初试锋芒 A mission to the asteroid belt will visit leftovers from the solar system's formation 小行星带探测任务将造访太阳系形
经济学人科技系列
You may not feel outstandingly robust, but if you are an average-sized adult you will contain within your modest frame no less than 7 x 10 18 joules of potential energyenough to explode with the force of thirty very large hydrogen bombs, assuming you
万物简史
We now know that Cepheids throb as they do because they are elderly stars that have moved past their main sequence phase, in the parlance of astronomers, and become red giants. The chemistry of red giants is a little weighty for our purposes here (it
万物简史
WASHINGTON, Dec. 22 (Xinhua) -- The journal Science on Thursday chose the HPTN 052 clinical trial, an international HIV prevention trial as the 2011 Breakthrough of the Year. The study found that if HIV-infected heterosexual individuals begin taking
英语新闻
NASA has announced that an Asteroid will pass closer to Earth than the TV satellites that surround the planet. NASA says that the celestial visitor has no chance of impacting the Earth and is known as 2012 DA14. A group of amatuer astronomers discove
英闻天下
Hildebrand traveled to the site and decided fairly swiftly that they had their crater. 希尔德布兰德来到该地，很快就得出结论，他们找到了想要找的大坑。 By early 1991 it had been established to nearly everyone's satisfacti
万物简史
本期内容： A multinational team of astronomers working at the European Southern Observatory in Chile discovered an Earth-sized planet in orbit around a star four light-years away. Proxima Centauri b is a bit bigger than Earth and orbits within i
夏说英语新闻晨读
Parallax is a phenomenon by which we can judge the distance to things just by looking at them. Astronomers use parallax to calculate the distance to stars. Do you need a gigantic computer-based observatory to use it? Not at all. Your finger will do n
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