标签：天文学家 相关文章
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
我们今天学的词是：planet。Planet是行星。不过你听说了吗，太阳系中排行第九的行星冥王星Pluto被降级了。Astronomers' reclassification strips ninth planet of status in solar system. 国际天文学会对行星重新定
英语每日一词
(woman) Most people think of astronomers as people who spend their time in cold observatories peering through telescopes every night. In fact, a typical astronomer spends most of his or her time analyzing data and may only be at the telescope a few
托福听力短文
Part I Lost in the cosmos 第一章 如何营造一个宇宙 They're all in the same plane.They're all going around in the same direction. . . . 它们都处于同一平面。 它们都在沿同一方向转动...... It's perfect,you know. It's gorgeo
万物简史
Of course, any terraforming is still a long way off. The next few expeditions to Mars will definitely be made by machines. NASA, are sending 2 rovers, capable of travelling over 100 meters a day in se
火星生命
Newly Discovered Solar System Matches Our Own The American space agency NASA and the technology company Google have identified an eighth planet in a faraway solar system. 美国宇航局和谷歌科技公司已经发现了一个遥远的类太阳系中
2018年VOA慢速英语(一)月
This is Scientific American's 60-Second Science. I'm John Matson. Got a minute? Earth's surface is dominated by oceans. But where did all that water come from? Asteroids and comets smashing into the early Earth have long been thought to be a promisin
Scientific American(十)月
Energy isn't created or destroyed,it's transferred, so it's transferred from the center of the Sun through the atmospheres to us in many forms, warmth and light via the plants and via the food that we eat. I can really understand why ancient civiliza
探索与发现2015年
AS IT IS 2016-03-09 Solar Eclipse Starts Wednesday, Ends Tuesday 星期三开始星期二结束的日食 This is Whats Trending Today. A solar eclipse will pass over Earth on Wednesday, starting in Southeast Asia March 9, and ending in the western Pa
2016年VOA慢速英语(三)月
February 19th 1945.Weve got cities and pricks, all up along the beach, and dozens of marines are around each one of them In the final months of World War II, Some 30,000 US marines begin landing at Iwo Jima.Thats where they fight a month-long battle
历史上的今天-2011年
February 19th 1945.Weve got cities and pricks, all up along the beach, and dozens of marines are around each one of them In the final months of World War II, Some 30,000 US marines begin landing at Iwo Jima.Thats where they fight a month-long battle
历史上的今天-2012年
February 19th 1945. Weve got cities and pricks, all up along the beach, and dozens of marines are around each one of them In the final months of World War II, Some 30,000 US marines begin landing at Iwo Jima.Thats where they fight a month-long battle
历史上的今天-2014年
February 19th 1945.Weve got cities and pricks, all up along the beach, and dozens of marines are around each one of them In the final months of World War II, Some 30,000 US marines begin landing at Iwo Jima.Thats where they fight a month-long battle
历史上的今天-2015年
February 19th 1945.Weve got cities and pricks, all up along the beach, and dozens of marines are around each one of them In the final months of World War II, Some 30,000 US marines begin landing at Iwo Jima.Thats where they fight a month-long battle
历史上的今天-2016年
Tekapo is a special place. This small town has a big observatory at Mount John, 1000m above the town. It has six telescopes including New Zealands biggest telescope with a diameter of 1.8m, built with Japanese money. The observatory is operated by th
新西兰英语
At his urging, the Royal Society agreed to engage a reliable figure to tour the British Isles to see if such a mountain could be found. Maskelyne knew just such a personthe astronomer and surveyor Charles Mason. Maskelyne and Mason had become friends
万物简史
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
英语时差8，16