How does the Martian atmosphere's density change at different elevations?

火的大气密度如何随着高度变化？

The Martian arctic could freeze the robot.

火北极可能会冻住机器人。

Do we do some form of Martian orbit rendezvous?

我们是否进行某种形式的火交会？

That's a 1,700-square-foot Martian habitat inside a building in Houston.

这是一个位于休斯顿的一栋建筑内的占地1700平方英尺的火栖息地。

In 1999, a 125 million dollar satellite sent to Mars, disappeared in the Martian atmosphere.

1999 年，一枚发射到火、价值 1.25 亿美金的人造卫，火大气消失了。

But that things like tomatoes carrots and other crops could grow in simulated Martian soil.

像是番茄、胡萝卜等等可以生长模拟的火土壤。

We're going to need the ability to convert the martian atmosphere into breathable oxygen.

我们需要能将火大气转化为可供呼吸的氧气的能力。

Well, in the film, The Martian, a stranded astronaut grows potatoes on Mars.

好吧，《火救援》中，一位被困火的宇航员火上种土豆。

The worst part is when you're coming to contact with the Martian surface.

最糟糕的是当你来到火表面。

Along the way it found ample evidence for the presence of water during Martian history.

此过程中，它发现了火曾存水的大量证据。

The passenger...a robot geologist headed for the Martian arctic.

乘客是——一位前往火北极的地质勘探机器人。

Martian air and even occasional cloud formations are made up almost entirely of carbon dioxide.

火的空气和偶尔的云几乎完全由二氧化碳组成。

The advice you find there might help you set up your own little Martian colony.

也许会有能帮你建立自己的火小殖民地的建议。

But when it was, it could have shot lava beyond the Martian atmosphere.

但当这座火山活跃的时候，它可以将岩浆射出火的大气。

I'm a Martian. I think Mars is the next great destination.

我是火人。我认为火是下一个伟大的目的地。

No Martian colonies yet, but we do have humans living long term around our planet.

还没有火殖民地，但我们有人类长期生活我们的球上。

The 2.4-billion-dollar mission is the U.S. space agency's ninth trek to the Martian surface.

这项耗资24亿美元的任务是美国航天局第九次登上火表面。

The flight took about seven months before a dramatic landing on the Martian surface.

这次飞行花了大约七个月的时间才戏剧性地降落火表面。

Deeper in space the ESA has plans to retrieve Martian samples in 2022.

更深的太空中，欧空局计划2022年取回火样本。

The median Martian surface temperature is about minus-65 degrees Celsius.

火表面的中位数温度大约是零下65摄氏度。