单词：solar maximum mission (smm)
单词：solar maximum mission (smm) 相关文章
诸多线索综合起来为我们描绘出一幅画面：那是火星遥远的过去，那时的火星还有着一层厚厚的大气层，令这颗星球温热暖和，从而使水能够在火星表面流淌。但如今，地表的水消失不见，而
60秒科学
By Alex Villarreal Washington 31 October 2007 NASA has delayed the fourth spacewalk of a complex two-week mission by U.S. space shuttle Discovery to boost the capability of the International Space Station. The walk, originally set for Thursday, is no
2007年VOA常速英语（十月）
You're late, Coop. Ah, we had a flat. ___________1___________. Solar cells power an entire farm. What did ya do, Murph? Ah, she didn't do nothing. Murphy's Law! You're a well-educated man, Coop, and a trained pilot. And an engineer. The world doesn't
英文电影预告片填空
By David McAlary Washington 14 September 2006 The International Space Station has spread a new pair of golden wings. They are solar panels that will double the amount of power available to the outpost. Unfurling them took longer than expected becaus
2006年VOA标准英语（九月）
The clues are adding up to give a picture of a distant Martian past, when the planet had a thick atmosphere that was warm enough for water to stream on the surface. But now the waters gone, and the atmosphere is so thin that any water would boil away
Scientific American(十)月
Spacecraft Moving in for Jupiter Close-up 朱诺飞船靠近木星 Jupiter, our solar systems largest planet, is about to show its secrets. On July 4, a NASA spacecraft will enter Jupiters orbit and start sending data back to Earth. It will be the fi
2016年VOA慢速英语(七)月
By David McAlary Washington 18 February 2007 The U.S. space agency NASA has launched five satellites - the most ever from one rocket - to locate the source of energy in Earth's magnetic field that triggers the colorful, dancing auroras over the north
2007年VOA标准英语（二月）
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 David McAlary Washington 12 September 2006 The International Space Station has received a new pair of giant solar energy panels that will double the amount of power to the outpost. Spacewalking astronauts have begun the task of connecting them to
2006年VOA标准英语（九月）
By David McAlary Washington 19 January 2006 The United States has launched the first spacecraft to the distant, icy planet Pluto. The distance from Earth is so great the journey will take nine years f
2006年VOA标准英语（一月）
By Jessica Berman Washington 22 February 2006 U.S. astronomers have discovered two moons orbiting Pluto, an icy planet smaller than our moon. Scientists found the moons while surveying the sky as part
2006年VOA标准英语（二月）
JUDY WOODRUFF: Let's look at a space mission that's generating lots of interest and excitement. It's the mission to orbit the dwarf planet Ceres by the NASA spacecraft named Dawn. It arrived in March, and as the spacecraft has gotten closer in recent
PBS访谈环境系列
By Chris Simkins Washington, DC 19 January 2006 watch Pluto Mission report The U.S. space agency NASA delayed the launch Wednesday of a rocket carrying a probe that will study the planet Pluto and its
2006年VOA标准英语（一月）
By Margaret Besheer Washington 03 November 2007 NASA astronauts have successfully repaired a damaged solar wing at the International Space Station. The operation was completed Saturday, after being postponed twice so engineers could further study how
VOA常速英语2007年（十一月）
The U.S. space agency(代理中介) has released the first ever image taken of the surface of Mercury from a spacecraft orbiting the planet. The black and white image, posted on the NASA website Tuesday, shows a surface pocked with craters of varying
英语新闻
By David McAlary Washington 13 September 2006 The International Space Station (ISS) spreads its new solar wings Thursday. Spacewalking astronauts from the U.S. space shuttle Atlantis have spent two days preparing them for operation, and now they are
2006年VOA标准英语（九月）
By Alex Villarreal Washington 01 November 2007 NASA has delayed yet again the fourth spacewalk of U.S. shuttle Discovery's two-week mission to boost the capability of the International Space Station. The walk, originally set for Thursday, was first m
VOA常速英语2007年（十一月）
LOS ANGELES, May 25 (Xinhua) -- NASA project managers bade farewell to the Mars rover Spirit on Wednesday after sending a final set of commands to the stranded vehicle. This marks the completion of one of the most successful missions of interplanetar
英语新闻
The U.S. space probe MESSENGER is poised to enter orbit around Mercury（水银） early Friday, Universal time, capping a nearly seven-year journey to the solar systems innermost planet. Scientists with the U.S. space agency, NASA, hope the orbiting
英语新闻
模仿文本： The sun is currently at its maximum - that point in its 11-year cycle where solar activity should be at its height. Usually scientists will expect to be seeing large numbers of sunspots and solar flares. But this time around the sun i
英音模仿秀