旨在取代老化的航天飞机的火箭原型因为恶劣的天气而被推迟发射。
The launch of a prototype rocket designed to replace the aging shuttle has been delayed by bad weather.
如果我们能利用太阳能为这样的电梯提供动力,我们只需花费乘坐火箭或航天飞机旅行费用的一小部分就能进入太空。
If we could power such an elevator with solar energy, we could simply rise up into space for a fraction of the cost of a trip by rocket or shuttle.
气球的优点是它比航天飞机或火箭便宜。
The advantage of the balloon is that it will be cheaper than a space plane or rocket.
蝙蝠和秃鹫曾经围攻过发射台上的航天飞机,更别提闪电差点摧毁了NASA最强劲的火箭。
Bats and vultures have besieged space shuttles at the launch pad, not to mention lightning, which tried and failed to tackle NASA? S mightiest rocket.
例如,空间探索技术公司表示,视火箭类型,他们能把发射费用降到5千万到1亿美元。 而航天飞机每次发射的花费高达15亿美元。
For example, SpaceX says it can reduce the cost of a launch, depending upon the rocket, to between $50 million and $100 million compared to the $1.5 billion price tag for each space shuttle mission.
该运载火箭是美国空军所有火箭中运载能力最强的,可以将23000公斤的货物送入地球低轨道,可与NASA的航天飞机媲美。
The resulting rocket, the most powerful in use by the US Air Force, is capable of lifting over 23,000 kilograms into low Earth orbit, comparable to NASA's Space Shuttle.
战神i - X站立时高度约为327英尺(100米)——比NASA的航天飞机高出14层楼的高度——与同名的战神I号火箭比肩。
It stands about 327 feet (100 meters) high -14 stories taller than NASA's space shuttles -and is equivalent in height to its namesake Ares I.
美国宇航局正在研制能到达月球的新一代火箭和载人太空舱,计划在五年内搭载航天飞机进行发射,而目前的航天飞机将于明年退役。
The space agency is developing a new generation of rockets and crew capsules capable of reaching the moon which are due to fly within five years of the space shuttle fleet being retired next year.
要完成建设国际空间站的工作,需要美国航天飞机和俄罗斯火箭进行超过80次太空飞行。
More than 80 flights of U.S. space shuttles and Russian rockets will be necessary to complete the International Space Station.
像这样,能够反复利用的运载火箭(正如航天飞机)就成为控制成本的关键。
As such, launch vehicles that are reusable (like the space shuttles) are key to keeping costs under control.
这是这艘世界上飞行次数最多的火箭飞船的"绝唱之旅",也宣告近30年的美国航天飞机项目即将终结。"
This is the final flight for the world's most travelled rocket ship as the shuttle program draws to a close after 30 years.
与过去这些巨型的火箭相比,航天飞机可能看起来像个“小不点”,但其28年的飞行历史使它成为助推器调配很好的标杆。
NASA’s space shuttle fleet may seem puny compared to giant rockets of the past, but its 28-year flight history makes it a good measuring stick when it comes to booster match-ups.
这次发射是NASA新型火箭的第一次亚轨道飞行测试,成熟后的战神I号将替代航天飞机,搭载猎户太空舱进行载人航天的任务。
The rocket launch is NASA? S first suborbital test of the new Ares I booster to launch astronauts to space aboard its shuttle successor, the Orion craft.
2月25日,美国航天局航天飞机组在犹他州海角对可回收的液态火箭引擎进行了最后的测试。
NASA's Space Shuttle Program conducted the final test firing of a reusable solid rocket motor Feb. 25 in Promontory, Utah.
战神I号火箭的设计目的是发射预计将取代航天飞机的NASA猎户座宇宙飞船。
The Ares I booster is designed to launch NASA's Orion spacecraft slated to replace the shuttle fleet.
国会在这一点上进行了激烈的争辨,但在2010年底达成了妥协。其结果是航天飞机在2011年结束其使命(比原计划推迟了),研发一种新型重载火箭。
Congress fought bitterly over this but a compromise reached in late 2010 will see the shuttle end in 2011 (later than planned) and the development of a new heavy-lift rocket.
从外部燃料箱的顶端至船尾固体火箭助推器的裙摆,发射台上的航天飞机高184英尺(56米)。
A shuttle on the launch pad measures 184 feet (56 meters) tall from the tip of the external tank down to the aft skirts of its twin solid rocket boosters.
航天飞机能把远高于现在使用的火箭的载荷送上轨道,并且可以把重物件运返地面。
The shuttles can carry a far greater load into orbit than any other rockets now in use, and can also bring heavy items back to the ground.
屹立在39B发射台上的战神I-X火箭塔高327英尺(约100米),这个发射场此前一直被用于航天飞机发射,现在已被转用于新的助推器。
The Ares I-X towers 327 feet (100 meters) above Launch Pad 39B, a launching site that until recently was used to fly space shuttles, and has been converted for the new booster.
航天飞机的退役应该是为新的长距离重载火箭家族腾出资金。
The retirement of the Shuttle was supposed to free up money for a new family of long-distance, heavy-lift rockets.
铝已经成为了许多火箭燃料小却关键的组成部分,包括航天飞机固体燃料推进火箭和国家宇航局下一代的Ares火箭。
Aluminum already represents a small but critical part of many rocket fuels, including the propellants for the space shuttle's solid booster rockets and NASA's next generation Ares rockets.
6秒之后,航天飞机的双固体燃料火箭推进器点火,固定航天器的爆炸螺栓切断,整个航天飞机一飞冲天。
After those six seconds, a shuttle? S twin solid rocket boosters ignite, explosive bolts holding the spacecraft down are severed and the entire stack soars spaceward.
一些专家学者怀疑,战神1号项目可能不会继续,因为战神系列火箭的设计初衷就是作为航天飞机的替代品承担向国际空间站运送飞行员的任务。
Some experts doubt that Ares I will make the cut, given that it was largely designed to serve as a space shuttle replacement to ferry humans to the International Space Station.
NASA计划用五级航天飞机助推火箭作为Ares I火箭的第一级,Ares i是淘汰航天飞机后的星座计划使用的两种火箭之一。
NASA plans to use a five-segment shuttle booster as the first stage of its Ares I rocket, one of two being designed as part of the post-shuttle Constellation program.
该火箭的第一级是发射航天飞机用的固体燃料火箭的马力加强版;顶端一级是同样增强了马力的用在土星火箭上的J2巨型发动机。
Its first stage is a souped-up version of one of the shuttle's solid-fuel rockets; its top stage is a similarly muscled-up model of the Saturn's massive J2 engines.
自1975年“土星1b”火箭发射了与苏联的联盟号对接的阿波罗太空船以来,非航天飞机用的火箭第一次出现在美国国家航空航天局的发射台上。
Not since 1975, when a Saturn IB rocket launched an Apollo capsule to meet a Soyuz spacecraft from the Soviet Union, has a non-shuttle rocket sat atop a NASA launch pad.
早期火箭先驱robertGoddard还是一艘载人航天飞机之父,他忍受了数十年的嘲笑,在他死前他的梦想终于成真。
Robert Goddard, an early rocket pioneer and one of the fathers of manned space flight, endured decades of ridicule and died before his dreams became reality.
他说,这是天龙和NASA航天飞机以及欧洲航天局(ESA)Ariana5号火箭的不同之处。因为他们认识到,NASA和ESA的做法需要昂贵的一次性火箭才能将航天器送入轨道。
This, he says, is where Skylon leaves NASA crafts or the European Space Agency's (ESA) Ariane five rocket, in its wake as they need expensive, disposable rockets to propel them into orbit.
如果你将这些环形山里的水分转化成火箭燃料,你足以在2000多年的时间里每年发射一架相当于航天飞机的航天器。
If you converted those craters' water into rocket fuel, you'd have enough fuel to launch the equivalent of one space shuttle per day for more than 2000 years.
如果你将这些环形山里的水分转化成火箭燃料,你足以在2000多年的时间里每年发射一架相当于航天飞机的航天器。
If you converted those craters' water into rocket fuel, you'd have enough fuel to launch the equivalent of one space shuttle per day for more than 2000 years.
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