The next challenge for the Chang'e-5 is to carry out a rendezvous and docking mission in an orbit around the moon.

嫦娥五号的下一个挑战是在绕月轨执行交会对接任务。

It's when trains travel on magnetic track rather than conventional rails.

这是指火车在磁力轨行驶，而不是传统的轨。

It's still on an unsustainable trajectory.

现在仍在不可持续的轨。

The puncture in space-time is so deep that light moves around in orbit, so that light behind the black hole, as I think we'll see soon, moves around and comes to us on these parallel lines at exactly that orbit.

太空中的穿刺深度如此深，使光线在轨周围移动，那么黑洞后面的光，我想我们很快会看到，在这个轨，着这些平行线向我们走来。

It's like the project has gone off the rails even if it stays on them.

好像项目已经偏离了轨，即使它还在轨。

Now, maybe he didn't play spoiler in it, but he still stayed on track and found his groove, a driving force to be reckoned with.

虽然他的比赛没有悬念，但他仍然在轨并且找到了自己的位置，这是一种应该加以考虑的驱动力量。

Astronauts have reported problems with their vision after working in orbit.

宇航员在轨工作后，报告他们的视力出现了问题。

Prime Minister Narendra Modi announced that a missile fired from the ground had successfully destroyed one of India's own satellites in low orbit.

印度总理纳伦德拉 · 莫迪(Narendra Modi)宣布，从地面发射的一枚导弹成功摧毁了印度自己在低轨的一颗卫星。

Two, spacecraft heading toward the International Space Station have a limited window of time they can launch because they have to catch the ISS in its orbit.

二，前往国际空间站的宇宙飞船的发射时间有限，因为它们必须在轨与国际空间站对接。

Since 1999, NASA has had a telescope in orbit called the Chandra Spacecraft.

自1999以来，美国国家航空航天局在轨安装了一架名为“Chandra Spacecraft”的望远镜。

We have two planes right now on the same trajectory.

现在有两架飞机在同一轨飞行。

The kinetic sculptures that Anthony Howe creates are tall as much as 25 feet high and they're stopping people in their tracks around the world

安东尼·豪，创造的动能雕塑高达25英尺，它们在世界各地阻止人们在他们的轨.

And then there's the potential ecological risks within national park in the proposed trajectory.

在这个计划的轨，国家公园内还有潜在的生态风险。

For a long time, Richat served as a reference point for cosmonauts in orbit and it's quite convenient, a clearly visible object in the middle of a vast desert.

长期以来，里查特作为宇航员在轨的参考点，这是相当方便的，一个在广阔的沙漠中央清晰可见的物体。

You go from 3Gs to 0G instantaneously and then it's this overwhelming view of the blackness of space. OK. I'm in orbit.

你瞬间从3G变为0G，然后进入一个完全黑暗的空间。好的，我在轨。

More and more it seems, the human presence in low earth orbit is set to expand in ways that we've never seen before.

看起来，人类在近地轨的活动范围正以前所未有的方式扩展。

NASA announced the earliest he can return to earth now will be on September 27th and that would mean he'd be logging at least 371 days in orbit.

美国宇航局宣布，他最早可以在9月27日返回地球，这意味着他将在轨至少停留371天。

What? - I'm still on the train tracks. I can't get off them.

什么？ - 我还在火车轨。我怎么不下来。

It's called Starlink it's being launched by the space flight company SpaceX, and it could add between 12,000 and 30,000 satellites to low earth orbit.

它被称为Starlink，由太空飞行公司SpaceX发射，用以在近地轨增加1.2万到3万颗卫星。

I think we're on the right track.

我觉得我们在正确的轨了。