planet

The orientation of the planet 's orbit is changing continuously .

该行星轨道的方向不断变化。

Scientists are studying photographs of the planet for signs of life .

科学家仔细察看行星照片，寻找生命迹象。

The planet Jupiter may have no solid surface at all .

木星表面可能根本就不是固体的。

Is there intelligent life on other planets ?

在其他星球上存在具有智力的生命吗？

Does life exist on other planets ?

其他行星上有生命吗？

The search party was teleported down to the planet 's surface .

搜索队被传送到那个星球的表面。

Which planets can sustain life ?

哪些行星可以维持生命的存在？

The new planet is about ten times the size of the earth .

新发现的行星大约是地球的10倍那么大。

Saturn is the second biggest planet in the solar system .

土星是太阳系中的第二大行星。

The planet is probably in orbit around a small star .

这颗行星可能正环绕着一颗小恒星运行。

The picture shows six of the eight planets in the solar system .

这幅图标示了太阳系八大行星中的6颗。

The blue whale is the largest living thing on the planet

蓝鲸是地球上体型最大的生物。

The gases that may be warming the planet will have their main effect many years hence .

可能正导致地球变暖的那些气体，其主要影响将在多年后显现。

Early astronomers thought that our planet was the centre of the universe .

早期的天文学家认为我们的星球是宇宙的中心。

We have literally altered the chemistry of our planet 's atmosphere

我们确实改变了地球大气层的化学构成。

The planet Mars will be visible to the naked eye all week

整周都可以用肉眼观察到火星。

The newly discovered world followed an orbital path unlike that of any other planet .

新发现的这个天体具有不同于任何其他行星的运行轨道。

He developed a mathematical formula describing the distances of the planets from the Sun .

他研究出了一个用于计算行星与太阳之间距离的数学公式。

The total number of species on the planet appears to be growing by leaps and bounds .

地球上的物种数目似乎正飞速增长。

There are lots of ways of annihilating the planet

毁灭地球有很多方法。

In 1664 Hooke observed a reddish spot on the surface of the planet .

1664年，胡克注意到这颗行星表面有一块微红的斑点。

The chances of a planet surviving a supernova always looked terribly slim .

行星躲过超新星爆发的几率总是十分渺茫。

The name Vulcan was given to the undiscovered planet

一颗不为人知的行星被命名为“祝融”。

The URL for the Lonely Planet travel centre is http://www.lonelyplanet.com .

“孤独星球旅游中心”的网址是http://www.lonelyplanet.com。

All the planets orbit the Sun in roughly the same plane , round its equator .

所有的行星大致在同一平面上绕太阳赤道运转。

We are reproducing ourselves at such a rate that our numbers threaten the ecology of the planet .

我们的繁衍速度太快，以至于人口数量对地球的生态系统造成了威胁。

Given the sheer number of stars that exist it 's a mathematical certainty that there is life on other planets .

考虑到现有星球数量，从数学的角度来说，其他行星上面肯定存在生命。

Data from Voyager II has presented astronomers with a puzzle about why our outermost planet exists

“旅行者二号”发回的数据给天文学家们提出了一个难题：离我们最远的那颗行星为什么会存在。

Its rings were discovered by telescope from Earth , but space probes later found that spectacular rings surround some other planets

它的圆环是从地球上用望远镜发现的，但是太空探测器后来又发现了围绕其他一些星球的壮观的圆环。

It is probably easier to make an analogy between the courses of the planets , and two trains travelling in the same direction .

将行星的运行比作两列火车朝同一方向行驶可能更容易些。