Hey Brainiacs, do you know the names of all of the

嘿，各位金頭腦，你們知道

planets in our solar system?

太陽系所有行星的名稱嗎?

There are 8 planets in our solar system.

我們的太陽系中有8個行星

All of the planets orbit around the sun,

所有行星都繞著太陽運行

including our planet Earth.

我們的地球也是

Let's join Lizzy on the Planets Train to learn

現在一起跟著Lizzy搭乘行星列車，認識

a bit about each planet.

每個星球吧

The closest planet to the Sun is Mercury.

最靠近太陽的行星是水星

It's very small and mostly made of rock.

體積很小，大部分成分是石頭

Daytime on Mercury is really hot but the nights are

水星白天非常熱，但到了晚上就

super cold, giving Mercury the biggest temperature

超級冷，水星是

range of all of the planets.

所有星球中溫差最大的

The second planet from the sun is Venus.

從太陽算起第二個星球是金星

Unlike Mercury, it's covered in a thick layer of

不像水星，金星上覆蓋一層厚厚的雲

clouds and it's the hottest planet in our solar system.

是太陽系中最熱的行星

The surface of Venus is so hot that it could cook

金星表面非常熱，烤一整個

a whole pizza in only 3-7 seconds!

披薩只要3-7秒！

The third planet from the sun is Earth, the one we

第三個星球是地球，我們

call home. It's the only planet we know of that

的家園，這是我們知道唯一

contains life but scientists are constantly looking

有生命存在的行星，科學家仍持續尋找

for signs of life on other planets and even some moons.

其他有生命跡象的星球，連衛星也不放過

The next planet is Mars. It's about half the size

下一個是火星，大小是

of the Earth and the next place we're likely to

地球的一半，這可能是下一個

send astronauts to visit.

太空人會去造訪的星球

Scientists are hoping to send people to Mars in about 20 years.

科學家希望20年內能將人送上火星

Next up is the gas giant, Jupiter! It's the biggest

下一個是氣體界的巨星，木星！它是

planet in our solar system and it's so big, you could

我們太陽系中最大的星球，它超大，你可以

fit around 1300 Earths inside of it!

把1300個地球塞到木星裡

Saturn is the second largest gas giant planet and it

土星是第二大的氣體星球，它有

has a beautiful ring system around it. These rings

美麗的土星環環繞，這些土星環

are made up of millions of chunks of rock and ice.

由數百萬計的石塊和冰塊組成

The seventh planet is Uranus and it has a smaller ring

第七個星球是天王星，天王星有小型環狀

system. Scientists think it may have been hit by an

系統，科學家認為它很久以前可能曾與

Earth-sized planet a long time ago which might be why

約地球大小的星球發生撞擊，這也許也是為什麼

it's the only planet tilted on its side.

天王星是唯一轉軸傾斜的星球

The eighth and farthest planet from the sun is Neptune.

第八個也是離太陽最遠的星球是海王星

It's the coldest planet because it's so far from the sun.

它是氣溫最低的星球，因為它離太陽非常遠

It's also the windiest planet with winds up to

海王星上的風也是最強勁的，風速可高達

1300 miles per hour, which is almost 10 times as

每小時1300哩，這個風速是

strong as the most powerful hurricanes on Earth!

地球上最強颶風的10倍！

And those are the 8 planets of our solar system, but

以上就是太陽系的8個行星，不過

there is one more object that we need to talk about.

我們還要再討論一個星球

Pluto used to be the 9th planet but now it's called a

冥王星以往被稱為第九大行星，但現在被稱為

dwarf planet because it's so small (even smaller

矮行星，因為它很小（甚至比

than Earth's moon).

月亮還小）

We just got our first high quality photos of Pluto

我們不久前才剛取得第一張高畫質的冥王星照片

in the summer of 2015 when we sent a space craft to

2015年夏天我們派遣一台大空船

fly close by. And we'll be learning a lot more about

航近冥王星，以後，我們就能更了解它了

it over the next year as we get more data from the

明年，我們就能從《新視野號》

New Horizons probe.

獲得更多數據資料

There is a big difference in the sizes of the planets!

各行星的體積也相差很多

Let's take a look at all 8 planets, plus Pluto, in

來看看這8大行星，還有冥王星，它們彼此之間

their actual scales next to each other.

的實際比例對照

There's tiny Mercury

這是小巧玲瓏的水星

Hot and cloudy Venus

混濁又炎熱的金星

Earth and its Moon

地球和月亮

Dusty Mars

灰茫茫的火星

Woah! And there's gigantic Jupiter!

哇~還有超級巨星木星

Saturn with all of its rings

土星和它的環

Uranus and Neptune

天王星和海王星

And there's little bitty dwarf planet Pluto.

然後是小不點矮行星，冥王星

But of course, all of these planets are tiny when

當然，這些星球的大小跟

compared to the size of the sun!

太陽比起來都是微乎其微！

We've learned a lot about the planets over the last

我們已經了解過去100年來的行星

100 years but we're learning more every day

但每天還是要持續不斷學習

and there's still a lot left to explore.

還有很多事物等待我們去探索

Who knows, maybe one of you will get to visit one of

天曉得，哪天你們之中有人會去拜訪

these planets one day!

這些星球！

If you liked this video, I hope you'll subsribe to

假如您喜歡這個影片，歡迎訂閱

stay up to date with our upcoming content.

隨時更新收看我們的最新內容

We have lots more to come, from nursery rhymes and

接下來還會推出更多內容，舉凡童謠

ABCs, to basic math and more science!

ABC、基礎數學到其他科學都囊括在內！

You can also click here for a playlist of all

也可以按這裡，會有播放清單可以

our videos.

觀看所有影片

Thanks for watching, Brainiacs, and see you next time!

感謝您的收看，各位金頭腦，我們下次再見！