标签：Orbit 相关文章
There are three countries that have sent space craft to the moon, the U.S., Russia and the third which soft landed a rover there back in 2013 is China. But China hopes to become the first country to explore the dark side of the moon or the far side.
CNN美国有线新闻2018年7月
Directions: In this part of the test, you will hear a passage and read the same passage with banks in it. Fill in each of the blanks with the word or words you have heard on the tape. Write your answer inthecorresponding space in your ANSWER BOOKLET.
上海市中级口译资格认证
LULU GARCIA-NAVARRO, HOST: At NPR, our science reporters try to translate big ideas into less nerdy concepts for our audiences. At NASA's Jet Propulsion Laboratories, a team of visual strategists is doing something similar. They're creating art proje
2018年NPR美国国家公共电台1月
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
CNN美国有线新闻2018年9月
Unit 1 World News Up in Space Part I Warming up 1. Endeavor has docked with the ISS. What for? To provide electricity for science experiments When will the U.S. laboratory arrive? Next month 2. What does ISS have now? A living room and a command cent
Step by Step2000
A Stationary Satellite, part 2 A geostationary satellite orbitsthe planet at the same rate as the planet rotates, so the satellite is always over the same patch of ground. Cool! you say. Id like to have one of those about twenty feet over my house. S
英语听力文摘 English Digest
A Stationary Satellite, part 1 Some of the best devices in science have been anticipated by science fiction writers years before they existed. Occasionally a writer comes up with an idea that can be put into practice within their lifetime! Such is th
英语听力文摘 English Digest
By Valer Gergely Moscow 05 April 2007 watch Space Library report The next Soyuz spaceflight to the International Space Station is scheduled for launch on Saturday, carrying two Russian cosmonauts and a private American citizen. Jim Bertel narrates t
2007年VOA标准英语（四月）
By David McAlary Washington 22 December 2006 Space shuttle Discovery landing in Florida The U.S. space shuttle Discovery has returned to Earth after a mission to continue assembly of the International Space Station. VOA's David McAlary reports. Disc
2006年VOA标准英语（十二月）
By Patricia Nunan in Kantale, Sri Lanka 24 August 2006 As many as 170,000 people in northern and eastern Sri Lanka have been displaced in recent weeks by fighting between the Tamil Tiger rebels and government forces. VOA's Patricia Nunan recently me
2006年VOA标准英语（八月）
India has launched its first unmanned mission to the Moon. The mission is a major boost to the country's space program, as India joins Asian nations China and Japan in exploring the Moon. Anjana Pasricha has a report from New Delhi. In this photo pr
VOA标准英语2008年（十月）
Space weather satellites in orbit 太空天气预测卫星进入轨道 The Soyuz rocket is successfully launched - at last 联盟号火箭终于发射成功 Two European satellites that will study the weather in space are finally orbiting the Earth f
双语有声阅读
NASA Probe Takes First-Ever Close-Up Images Of Jupiter's North Pole play pause stop mute unmute max volume 00:0001:56repeat repeat off Update Required To play the media you will need to either update your browser to a recent version or update your Fl
2016年NPR美国国家公共电台9月
LULU GARCIA-NAVARRO, HOST: This is Lulu's log, stardate November 4, 2018, where we consider matters of space, the stars and the universe. (SOUNDBITE OF MUSIC) GARCIA-NAVARRO: When looking up at the stars, it's hard not to wonder what else or even who
2018年NPR美国国家公共电台11月
Each tag is whipping around the center of the galaxy, the particular, the most striking thing you will notice is the motion of SO2.So SO2 goes on an incredible roller-coaster ride. It comes whipping around and then back out. Something with tremendous
自然百科2011年
On 6th October 2008, asteroid hunter Richard Kowalski saw something that would change the assessment of threats presented by asteroid impacts. The night was proceeding normally and up on the screen came another asteroid. As I continued to make observ
探索与发现2014年
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
探索与发现2014年
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
英语听力文摘 English Digest
Mercury's core makes up about 60% of the planet by mass. It's about twice as big as earth. Why would it have such a huge core for such a small planet? Some people think there was a huge impact. Kind of stripped off a lot of the planet and now what we
自然百科2012年
If you find yourself away from a city, spend an hour looking up on any clear, moonless night. You're bound to see a few brilliant shooting stars. These actually have nothing to do with stars: They're meteors, and if your viewing conditions are good,
英语听力文摘 English Digest