The first pictures of Earth taken from space showed a solid ball covered by brown and green landmasses and blue-green oceans.

VOA: special.2011.01.04

But it's not a big con, because you can set up experiments in free space far from everything, where objects will, in fact, maintain their velocity forever.

但这并不是个反例,因为你可以在一个远离一切的空间里做实验,在那里,物体可以永远保持现有速度

耶鲁公开课 - 基础物理课程节选

This grid of horizontal lines, and we will know that if we're going from here to here, it's got to be exactly this frequency, or at least this space.

这个水平线组成的网格,让我们知道,从这里到这里,正好是这样的频率,或者至少是这个间隔

耶鲁公开课 - 聆听音乐课程节选

Space scientists have collected a wealth of information from spacecraft that have orbited,landed on and dug into the Martian surface.

VOA: special.2010.07.28

The extended-through-space train that I'm picking out when I pointed the locomotive turns out to be a different train from the extended-through-space train I picked out when I pointed to the caboose.

当我指着火车头,所提到的贯穿空间的火车,和我指着火车尾,所提到的贯穿空间的火车,不是同一辆。

耶鲁公开课 - 死亡课程节选

But seeing Earth from space may soon become a reality for wealthy people who dream of space travel.

VOA: special.2009.12.18

That was Cartesian space. When I plot r as a distance out from the nucleus that is sort of our simple-minded planetary model. Now let's look at energy.

笛卡尔坐标系，当我用r表示,离原子核的距离时，那只是我们头脑中简单的,类似行星的模型，现在我们看一下能量问题。

麻省理工公开课 - 固态化学导论课程节选

Yet,it took some time for the team to confirm that the amino acid glycine came from space.

VOA: special.2009.09.30

If you allow a little bit of spacing, a little more space between your frequencies, they're a little bit farther apart, then you can move from closeness plays to spacing and you get the consonance.

如果让频率间有点间隔,给频率间多一点空间,让它们彼此远离一些,从密集的音高,转向有间距的音程,就能得到和谐音

耶鲁公开课 - 聆听音乐课程节选

Many scientists believe that a huge object from space hit Earth about 65 million years ago.

VOA: special.2009.01.20

So I would help myself to this language of space-time worm object that extends not only over space but also over time, and distinguish the entire worm from the various slices or stages that either make up the worm or we could slice the worm into.

然后我借助时间虫这个词,这是描写物体,贯穿时间和空间的词语，并区分出整条虫,和不同的部分,这些部分是组成虫，或者虫可以切分成的。

耶鲁公开课 - 死亡课程节选

The two government agencies have been studying Arctic Sea ice from space since nineteen seventy-nine.

VOA: special.2009.05.05

The presence of carbon thirteen confirmed that the glycine was from space.

VOA: special.2009.09.30

But scientists think it was either a comet or rock from space.

VOA: special.2009.08.25

For a while, there was no communication from space to Earth.

VOA: special.2009.07.01

Some are so large that they can be seen from space.

VOA: special.2010.08.10

Frank Borman's disappointed words from space told the story.

VOA: special.2009.07.01

Then a voice came down from space.

VOA: special.2009.06.24

The Dixie Crossroads restaurant in Titusville depends on business from space workers.

VOA: standard.2010.03.18

The new space agency was given a lot of money and thousands of engineers and technicians from military and civilian agencies.

VOA: special.2009.06.10

The atmosphere is about twenty-percent oxygen and eighty percent nitrogen from Earth's surface to where space begins at one-hundred-twenty kilometers up.

VOA: special.2011.04.06

Rockman imagines a terrible future in which plants and animals must be sent into space to protect them from Earth's pollution.

VOA: special.2010.12.15

He also produced the thirteen-part series, "From the Earth to the Moon" because of his support for human space travel.

VOA: special.2011.06.17

Scientists at the Goddard Space Flight Center in Greenbelt,Maryland, found the substance glycine in material brought back to Earth from a comet.

VOA: special.2009.09.30

The National Aeronautics and Space Administration, NASA, launched Columbia from Kennedy Space Center on April twelfth nineteen eighty-one.

VOA: special.2011.07.27

This is a big change from earlier models where NASA led and controlled the development of space vehicles.

VOA: special.2010.04.28

The astronauts' decrease in bone strength measured from point six percent to five percent for each month spent on the space station.

VOA: special.2009.03.10

Much of what was learned from its flights speeded up the development of the space program.

VOA: special.2010.07.07

One of the most important was how to design the special clothing needed to protect a person from the dangers of the space environment.

VOA: special.2011.04.06

Newspapers in the United States earn most of their money from selling space for advertising.

VOA: special.2009.04.20