Asteroids are also called minor planets, not to be confused with dwarf planets like Pluto.

小行又被称为微型行，不要把和像这样的矮行混淆了。

None of the asteroids in our solar system look like that.

太阳系中的小行也没有这种形状的。

There were many planets and asteroids circling the sun.

太阳周围有许多行和小行。

Now utopia has grown unfashionable, as we have gained a deeper appreciation of the range of threats facing us, from asteroid strike to epidemic flu and to climate change.

然而如今乌托邦式的梦想已过时，们要面对的是更可怕的现实，彗撞地球、重度流感，甚至气候变更。

If I have told you these details about the asteroid, and made a note of its number for you, it is on account of the grown-ups and their ways. Grown-ups love figures.

如果已经给你们讲过关于小行B612的这些细节，并且告诉你们的编号，这是出于大人们以及他们的方式而考虑。大人们就爱数字。

Its destination, a near-Earth asteroid named Didymous and its moonlet.

的目的地是一颗名为Didymous的近地小行及其卫。

But of course, their height couldn't save them from the asteroid strike.

但当然，们的身高无法拯救们脱离小行撞击。

The asteroid they're one is just over a half a mile wide.

们登陆的小行的直径大约只有二分之一英里。

Closer in the asteroid belt, these are rocks not gas.

小行靠近小行带，们是岩石而非气体。

The idea is to create soil that's like that on Mars or asteroids.

这个想法是想创造出类似火或小行上的土壤。

Closer in in the asteroid belt, these are rocks not gas.

在靠近小行带的地方，有许多固体而非气体。

And that coincidently is the scheduled length of a new NASA mission that aims to study asteroid swarms that orbit in front of and behind Jupiter.

巧的是，这正是美国宇航局一项新任务的计划长度，该任务旨在研究围绕木前后轨道运行的小行群。

'We have impact! ' NASA slams spacecraft into asteroid in unprecedented test.

“影响重大！美国国家航空航天局在前所未有的测试中将航天器撞向小行。

At least we had an asteroid, what's your excuse?

至少恐龙可以怪小行，你们有什么借口？

And four times further than the asteroid belt.

比小行带的四倍还多。

Just launched a 12-year mission to explore asteroids and says it will soon land the first woman and first person of color on the moon.

刚刚启动了一项为期12年的小行探索任务，并表示将很快让第一位女性和有色人种登上月球。

It used to – 4 billion years ago. It’s possible that a massive collision with an asteroid might have heated up Mars's core, disrupting the magnetic fields.

40亿年前是有的。可能是火与其他小行发生了剧烈的碰撞使火核温度升高，扰乱了磁场。

It's destination a near-earth asteroid named Didymos and its moonlet.

飞船将飞向一颗名为迪蒂莫斯的近地小行和的卫。

This asteroid is at least 6 miles across, and travelling over 40,000 miles an hour.

这颗小行直径约10公里，时速超过64000公里。

Private companies like SpaceX want to send humans to Mars and others like Planetary Resources are looking toward asteroids as a possible source of income.

像SpaceX这样的私营公司希望把人类送上火，而像行资源这样的私营公司则把探索小行作为可能的收入来源。