planets

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。

The ability to do this will be necessary in future flights to distant planets.

将来飞往遥远的行星时,需要这样的能力.

Most stars probably have their quota of planets, meteorids, comets, and asteroids.

多数恒星也许还拥有若干行星 、 流星 、 彗星和小行星.

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。

Does life exist on other planets?

别的星球上存在生命吗?

She wrote important studies of the planets Jupiter and Saturn.

她写了几篇关于木星和土星的重要学术论文.

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。

The earth is one of the planets in the Galaxy.

地球是银河系中的星球之一.

Some planets run at incredible speed.

某些星球以难以置信的速度运行着.

Asteroids, also known as " minor planets ", are numerous in the outer space.

小行星, 亦称为 “ 小型行星 ”, 在外太空中不计其数.

They spin like fiery planets lots from their orbits.

他们象离开了轨道,冒着火的星球那样旋转.

Which planets can sustain life?

哪些行星可以维持生命的存在？

Inert gas studies are providing valuable information about other planets, too.

对惰性气体的研究, 也提供了有关其它行星的有价值的资料.

Is there life on other planets?

在其他行星上有生命 吗 ?

Travel through space to other planets interests many people today.

现在很多人对去宇宙中其它行星旅行感兴趣.