小行星

Vesta is not the largest asteroid, but is the only one bright enough to be seen with the human eye.

灶神星不是最大的小行星，但是却是唯一能用肉眼看到的足够明亮的小行星。

Now two studies published in the journal Nature suggest that notion may be all wet. Because at least one asteroid appears to be coated by a thin layer of ice. And just that kind of asteroidal frosting could have been the source of our water here on Earth.

现在，《自然》杂志发表的两项研究告诉我们这一观念恐怕是大错特错的，因为我们至少已发现了一颗小行星表面覆盖着一层薄冰，而且只有这种小行星结霜有可能是地球上水的来源。

The team ultimately collected some 280 small meteorites, now called Almahata Sitta, with a total mass of about 5 kilograms -- the first material recovered from a known asteroid.

团队最后找到大约280块陨石碎片。这个小行星现在被命名为 Almahata Sitta ，总质量约5kg——第一个找到实物的已知小行星。

Is, your excellency please says" jumbles together a senior official face to stand firmly,"I appoint you on behalf of the Earth complete humanity citizens, for super ultra can the nuclear weapon project global commander-in-chief, you must use your hybrid area the region broad resources rich as well as the personnel superiority produce in half year enough destroy 100 to raid the planetoid the nuclear weapon, and in addition half year in assembles to all meets head-on the starship as well as on the ground G8 0N decoy launching launch vehicle, this functional relationship overall situation, you may depend upon the hybrid area to be in between each non-hybrid area the place source superiority, coordinates in various areas scope all to be advantageous toThe plan implementation commodity and the personnel, have been good, as soon as has the difficulty to be possible to the headquarters report, the headquarters certainly to be able to give you as necessary with all one's strength support and the help" alliance president the voice falls, jumbles together the senior official to reply with the extremely affirmative expression:"Invites alliance president and everybody can rest assured that that, our hybrid region can certainly guarantee completes the task, only is at the appointed time, I must certainly participate in the destroy planetoid directly the ultimate duty!""

是，阁下请讲&混为一谈长官一脸坚决地站了起来，&我代表地球全部人类公民任命你，为超级超能核武器工程的全球最高指挥官，你要利用你们混血区的地域广阔资源丰富以及人员优势在半年内生产出足够摧毁一百个来袭小行星的核武器，并在余下的半年内装配到所有迎战星际飞行器以及地面发射场的运载火箭上，此项工作关系到全局，你可以依靠混血区处于各非混血区之间的地源优势，协调各区范围内一切有利于计划实施的物资和人员，好了，有困难可随时向总部汇报，总部一定会给你们全力的支持和帮助&联盟主席话音一落，混为一谈长官用极为肯定的语气回答到：&请联盟主席和大家放心，我们混血区域一定会保证完成任务，只是到时，我一定要直接参加摧毁小行星的终极任务！&，&

The most feature of the orbits of Near Earth Asteroids is that the semi major axes of the orbits are nearly equal to that of the Earth or the perihelia distances are approximate to or even less than the mean distance between the Sun and the Earth,thus they could move into inside of the Earth's orbit,so that th...

近地小行星轨道的最大特点是其轨道半长径与地球轨道半长径相近，或近日距离接近甚至小于日地平均距离，其运动可深入到地球轨道的内部，这将导致该类小行星与地球十分靠近甚至发生碰撞。

One of the prerequisites for life that has been proposed is for there to be a giant gas planet in the neighbourhood that soaks up most of the comets and asteroids before they can wreak havoc on the smaller, rockier worlds on which life can arise.

已经提出一个生命的先决条件是，在大多数彗星和小行星对更小且多岩石的可出现生命（至少是我们知道的生命形式）的世界造成浩劫之前，其临近某地区要有一个巨大的气体行星吸引大部分的这些彗星和小行星。

Star gazers can find Nadal's asteroid between Mars and Jupiter and the 22-year-old has himself been invited to the Majorcan observatory to view it himself.

今年22岁的纳达尔也应邀前往马略卡观测台亲眼观测这颗以他名字命名的小行星。&纳达尔&小行星位于火星和木星之间。

Asteroids are bigger versions of the meteoroids that race across the night sky. Most orbit the sun far from Earth and don't threaten us.

小行星是比划过业空中那些流星大的天体，大多数的小行星离地球很远的运行不会威胁地球的。

Also shown in recent years to be one in a growing list of double asteroids, new observations during August and October 2004 made at the Paranal Observatory convincingly demonstrate that 87 Sylvia in fact has two moonlets - the first known triple asteroid system.

近年的研究表明它是被越来越多地发现的&双小行星&中的一员，而2004年8月到10月间，由Paranal山欧洲南方天文台作出的观测，不容置疑地向我们揭示了87号小行星Sylvia实际上拥有2个小卫星——这是首个已知的三小行星系统。

David Helfand: Several ideas have been proposed: throwing up nuclear weapons at them, throwing at the satellite that gravitationally tugs its way a little bit, so its orbit changes ever so slightly just enough to miss the Earth as it whizzes past.

大卫·赫尔方：人们提出了好几种方案，比如发射核武撞击小行星，或者利用人造卫星的引力使小行星轨道发生轻微偏移，这样就能保证它们高速掠过时只是与地球&擦肩而过&而不会撞上。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了