VOA常速英语2018--NASA未来10年或专攻外星生命是否存在

The Hubble telescope has given us spectacular pictures from space, but theyre not detailed enough to help us in our search for life in the trillions of galaxies across the universe. If tens of percent of stars have planets that could resemble the ear

VOA双语新闻：10、美国航天局倾力寻找“生命之星”

美国航天局倾力寻找生命之星 For decades, looking for life elsewhere in the universe meant listening for signals that could be from distant civilizations. But recent breakthroughs in space technology refocused some of that effort toward fi

美国有线新闻 CNN 木星直径约是地球直径的11倍

In terms of its diameter, which of these planets is about 11 times the size of Earth? 就其直径而言，以下哪个行星的直径大约是地球直径的11倍? Venus, Saturn, Jupiter or none of these? 金星，土星，木星还是都不是? The

美国有线新闻 CNN 科学争论再起 将行星身份还给冥王星

Which of these is not a requirement for a celestial body to be considered a planet? Must orbit the sun, must clear its path of orbit, must have a moon or must be round. A planet does not need a moon to meet the International Astronomical Unions defin

科学美国人60秒 SSS 火星着陆器将在行星内部运行

Mars Lander Will Peer Inside Planet Absolutely spectacular missionand its not a rover, its a lander. Its designed to land and deploy several instruments. 这是一个绝对壮观的使命......它不是漫游者，而是着陆器。旨在登陆和部署

英语听力：星际动物园 01 You must marry me

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 ！

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

白领英语晨读-020 The Most Arrogant Speech in History 历史上最狂妄的演讲

Graduates of Yale University,I apologise if you have endured this type of prologue before,but I want you to do something for me.Please,take a good look around you.Look at the classmate on your left.Look at the classmate on your right. Now,consider t

美国有线新闻 CNN NASA在一个恒星系发现7颗类地行星

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

英语听力：探索发现 2014-07-20 BBC 地平线：陨石的真相-30

It came in in the daytime sky out of the Sun. Weve got telescopes looking out there for these objects, but they only work at night. Radar doesnt help either because to really use radar to find these objects above the atmosphere, you have to know exac

英语听力：探索发现 2014-07-18 BBC 地平线：陨石的真相-29

Approaching from beneath the planet, asteroid 2012 DA14 passed inside the orbit of our geostationary satellites before heading off to the north. This asteroid had been successfully tracked for a year. And despite its proximity, scientists knew that i

英语听力：探索发现 2014-07-16 BBC 地平线：陨石的真相-28

An asteroid strike would create a huge explosion. NASA feared this might even be mistaken for a nuclear bomb. We wanted folks to know this was a natural event by Mother Nature rather than some sort of man-made event like a missile or something dreadf

英语听力：探索发现 2014-06-13 BBC 地平线：陨石的真相-14

So was this a near miss for us? If the asteroid had been in a different part of its orbit, so it didnt hit this year but it hit next year, it would have still hit us on February 15th. But instead of coming in over Russia, it would have come in over t

英语听力：探索发现 2014-06-18 BBC 地平线：陨石的真相-16

Most of the damage from an explosion like this is actually the blast wave. Its the very high winds. Mark created a simulation to see what size an asteroid would need to be to be able to generate such destructive power. In this simulation I include mo

英语听力：探索发现 2014-07-09 BBC 地平线：陨石的真相-25

Luckily, the very biggest asteroids are few and far between. But there are still plenty of rocks out there that represent a significant danger to us. So, at the summit of an extinct Hawaiian volcano, Professor Nick Kaiser and his colleagues are searc

英语听力：探索发现 2014-06-08 BBC 地平线：陨石的真相-12

But there is a downside to Jupiter. It can also deflect asteroids into orbits that cross the Earths path. The Chelyabinsk meteor appears to be one of these typical Earth-crossing events. The likelihood is that it was thrown out of its regular orbit b

英语听力：探索发现 2014-05-23 BBC 地平线：陨石的真相-6

Meteor strikes as big as this may be rare butscientists have a surprisingly detailed knowledge of what meteorites are andwhere they come from. Long before the meteorite reached its explosivefinale in full view of Chelyabinsks dash cams, it had a very

英语听力：探索发现 2014-05-25 BBC 地平线：陨石的真相-7

By collecting and comparing meteorites, scientistshave been able to piece together a picture of how they form and these studieshave revealed some of the most remarkable rocks in the solar system. Few places in the world have got as many meteoritesas

英语听力文摘 English Digest 492、塞德娜

Sedna 塞德娜 （本文写于2004年） Pluto is the last of the nine planets, and when its at its farthest point in its elliptical orbit, its the farthest planet from the sun. That's true, but incorrect. Well, what you said about Pluto is true, bu

英语听力：自然百科 冰冻星球 前往地球尽头—20

These ice blocks are the size of sky creepers, and this is the bill of more glance with scoten seize man somehow travel on foot. It is one hundred miles long and one of the largest species on earth. Not nothing could prepare those early ex-dollars fo