Then I came upon a tiny rocky island and survived there by roasting birds' eggs, eating dried seaweed and drinking from pools of water.

后我登上了一个小的岩石岛，那里通过烤鸟蛋、吃干水草还有喝水池里的水得以生存。

Scientists are hoping to smash a spacecraft into the smaller rock, and then take measurements to see if the collision was able to change the moons orbit around the asteroid.

科学家们希望将航天器撞入较小的岩石中，后进行测量，看看碰撞是否能改变小行星周围的卫星轨道。

There are a lot of small rocks that are zinging through space.

有很多小岩石太空中呼啸而过。

Just like meteoroids are relatively small rocks that are zipping around in space, asteroids are bigger ones and two of those have been in the news recently.

就像流星体是太空中快速移动的相对较小的岩石一样，小行星是较大的岩石，中两颗最近现了新闻里。

In the low res images, everything just looks like small rocks.

低分辨率的图像中，所有东西看起来都像小岩石。

The legend says that when seven girls were attacked by bears, they took refuge on top of a small rock, and they appealed to the Rock God for help.

根据传说所言，当七个女孩受到熊袭击时，她们一块小岩石之上躲避，并呼吁岩石神寻求帮助。

There are a lot of small rocks that are zinging through space. They're called meteoroids.

有许多小岩石太空中穿梭。它们被称为流星体。

Chinstrap penguins usually lay their eggs in November in nests made up of small rocks.

帽带企鹅通常11月由小岩石构造的巢中产卵。

So you've got these little millimeter and dust size little beads of glassy material recondensing, from that vaporized rock, raining back through the atmosphere all across the entire planet, tens and tens of billions of tons of this stuff.

所以这些几毫米灰尘大小的玻璃材质的小珠子，岩石蒸表面上再凝结，穿过大层雨滴般落下整个地球上，这个东西有数十亿。

Liquid magma is less dense than solid rock, so it rises to the surface in furious bubbles that accumulate in sponge-like reservoirs right under the crust.

因为岩浆的密度比岩石小，它们像剧烈的泡泡般浮到表面，并地壳下囤积成一个海绵状的岩浆库。

And that became a really important sample because as people looked through it, they found little fragments of white rock and they're like, oh, it's anorthosite.

这成了一个非常重要的样本，因为当人们查看它时，他们发现了白色岩石的小碎片，他们就像，哦，这是斜长岩。

He said this is because if a spacecraft only partially destroys an asteroid, it could send smaller pieces of the space rock heading toward Earth.

他说这是因为如果航天器只部分摧毁小行星，那么这颗小行星可能会将较小的太空岩石碎片射向地球。

Less dense molten rock travels from the core to the surface, where it then cools and returns — a process called convection.

密度较小的熔融岩石从核心移动到地表，后那里冷却并返回——这个过程被称为对流。

At that time, Ireland's Eye was a vibrant, quaint fishing village hugging the rocky shore of a small, enclosed harbour.

当时，爱尔兰之眼是一个充满活力、古色古香的渔村，环绕着一个封闭的小港口的岩石海岸。

Uranus is an ice giant with a small rocky core and a thick mantle of ammonia, water, and methane.

天王星是一颗冰巨星，有一个小岩石内核和一层由氨、水和甲烷组成的厚厚的地幔。

The rock catchment method directs the water through a containing wall and smaller rocks that help to clean it.

岩石集水法通过一个围墙和一些较小的岩石引导水流，这些小石头有助于清洁水质。

And I think this rock garden is about the detail of big rocks and small plants.

而我认为这个岩石花园是关于大岩石和小植物的细节。

Today you learned that Uranus and Neptune are ice giants, with small rocky cores, thick mantles of ammonia, water, and methane, and atmospheres that make them look greenish and blue.

今天你学到了天王星和海王星是冰巨星，有小的岩石内核，有由氨、水和甲烷组成的地幔，以及使它们看起来呈绿色和蓝色的大层。

When they are submerged into the hot underworld, this water triggers chemical transformations that allow tiny portions to melt into magma.

当它们被隐没炙热的地下世界时，这些水触发化学变化，使小部分岩石熔成岩浆。

There's a small rocky core, smaller than Earth, surrounded by a very thick layer of materials like water, ammonia and methane.

有一个比地球小的岩石内核，外面包围着一层像水、氨和甲烷这样非常厚的物质。