标签:NASA 相关文章
The American space agencys lander InSight is to arrive on Mars Monday. The event will mark the space agencys return to the planet. Unlike NASAs Curiosity rover, which arrived in 2012, InSight will not move across the planets surface. Instead it will
Grammar Girl here. Today's topic is the difference between abbreviations, acronyms, and initialisms. It's kind of an extension of the last episode, because I want to clarify the difference between abbreviations and acronyms. Any shortened form of a w
Broadcast: January 8, 2003 By Paul Thompson VOICE ONE: This is Mary Tillotson. VOICE TWO: And this is Steve Ember with the VOA Special English program EXPLORATIONS. Today we tell about some of the imp
This is the VOA Special English Education Report. SOUND: Good morning, Discovery Center -- good afternoon. We're happy to be here with you. This is Al Drew, Clay Anderson, Dave Williams and I'm Barb Morgan. And we are ready for your first question. W
Hubble Detects Oxygen-Bearing Minerals on Moon 哈勃天文台探测到月球上拥有含氧矿物质 The orbiting Hubble observatory is usually aimed at extremely distant areas of the universe. But f
Juno Gets a Close-up Look at Jupiter 朱诺近距离观看朱诺卫星 The spacecraft Juno successfully passed close to Jupiter Saturday as it orbits the solar systems largest planet. NASA, the American space agency, said the spacecraft passed about
From NPR news in Washington, I'm Giles Snyder. It was another good night for Barack Obama. He won a decisive victory over Hillary Clinton in Wisconsin's Democratic primary. And the Associated Press says he is the winner in his native Hawaii with 75
美国开展新型航天器的研制工作 Since the retirement of its shuttle fleet in 2011, the U.S. space agency NASA has had to rely on Russian space vehicles to carry astronauts to the International Space Station. In the meantime, NASAs engineer
The massive earthquake that struck Chile in February 2010 might have shortened Earth's day by 1.26 microseconds, according to calculations by a NASA scientist. An EarthSky Facebook friend asked us how. And the answer is for the day to get shorter, Ea
(BBC News)The world's largest unmanned plane has been unveiled in Australia. (英国国家广播公司报道)世界上最大的无人驾驶飞机首度在澳洲亮相。 It is shaped like a bird and soars like one, too. 这架飞机造型像只鸟,
The most powerful firm in cyberspace now wants to conquer outer space. It's just the latest move in what has been a banner year for Google as it's spread its online web into bold new directions. Less
According to scientists from the National Snow and Ice Data Center and NASA, Arctic sea ice appears to have reached its minimum for the year at nearly 1.7 million square miles. A chilling fact, considering that this is only about 10 % more than the
By Mario Ritter SCIENCE REPORT -March 14, 2002: Space Tourism This is the VOA Special English SCIENCE REPORT. Would you like to orbit the Earth inside the International Space Station? Now you can take
SCIENCE REPORT – February 20, 2002: Pine Island Glacier By Jerilyn Watson This is the VOA Special English Science Report. Scientists have expressed much interest in the development of a huge new ice
NASA's Cassini Death Dives into Saturn, Ending Mission The spacecraft Cassini ended its 20-year mission on Friday with a final death dive into the planet Saturn. 卡西尼宇宙飞船周五最后一次冲向土星,结束了它20年的使命。 NASA
美国好奇号将登陆火星 The U.S. space agency is preparing for its newest Mars rover, Curiosity, to touch down on the Red Planet on August 6. The rover's entry and descent will be nerve-wracking for NASA engineers, compounded by a 14-minute de
美国航天局探秘范艾伦辐射带 One of the first discoveries of the space age, made in 1958, was that the Earth is surrounded with a doughnut-shaped field of highly charged particles. It was named the Van Allen radiation belt, after its disco
讲解 The key word is Scorpion S-c-o-r-p-i-o-n Scorpion 蝎子 天蝎 A scorpion is a small creature which looks like a large insect(昆虫). Scorpions have a long curved tail尾巴, and some of them are poisonous有毒. Here is an example: The scor
Meanwhile, a 45-meter wide asteroid has hurtled safely past earth after it came within 27-thousand kilometers, making it the closest known flyby for a rock of its size. The asteroid, named 2012 DA14 came closer to earth than many communication and we