Name: This Upcoming NASA Mission Could Discover How Our Solar System Began
Uploaded: 2020-08-31T19:25:09.000Z
Duration: 4 min 58 s

As of this month, NASA officially approved the construction  of their asteroid hunting

從本月起，美國宇航局正式準許建造他們的小行星獵殺。

spacecraft, Lucy. Little Lucy will visit two large asteroid clusters near Jupiter known as

太空梭 "露西 "號。小露西將訪問木星附近的兩個大的小行星群，它們被稱為 "小露西"。

the Trojan asteroids. It will be the very first time NASA visits these rocky clusters

木馬座小行星這將是美國宇航局首次訪問這些岩石群。

and, within 12 years, Lucy will analyze eight asteroids—both above and below their surfaces.

並且，在12年內，露西將分析8顆小行星--包括其表面上和下面。

Asteroids are remnants of our 4 billion year old past, and unveiling their origins could

小行星是我們40億年前的遺蹟 揭開它們的起源可能是

not only revolutionize our knowledge of planet formation, but maybe also provide insight

不僅徹底改變了我們對行星形成的認識，而且也許還能為我們提供深刻的認識。

about Earth, its ancient history, and how we got here. No other space mission in history

關於地球，它的古老歷史，以及我們如何來到這裡。歷史上沒有其他的太空任務

has been launched to as many different destinations in independent orbits around our sun, but

已被髮射到圍繞太陽的獨立軌道上的許多不同的目的地，但... ...

the difficulty will  be well worth it. This mission is truly tantalizing because the asteroids

的難度將是非常值得的。這個任務真的是很誘人，因為小行星

are so diverse.  The Trojan asteroids are broken up into two

是如此的多樣化。  特洛伊小行星被抽成了兩個

large swarms that orbit the Sun along Jupiter's path; one ahead of the planet and another

behind it. They're loosely held together by the gravitational pull of the Sun and the

在它的背後它們被太陽和太陽系的引力鬆散地固定在一起。

massive planet, creating a bit of delicate dance. Because there's so much to learn

龐大的星球，創造了一點微妙的舞蹈。因為需要學習的東西太多

from each cluster, scientists wanted to pick asteroids that represented three major types

科學家們想從每個星團中挑選出代表三種主要類型的小行星。

of bodies known as C-, P-, and D- types. Since these asteroids are in various locations, they

的天體，稱為C型、P型和D型。由於這些小行星分佈在不同的位置，所以它們

can reveal different exciting discoveries,  like how collisions worked billions of years

可以揭示不同的令人興奮的發現，比如碰撞是如何在幾十億年前工作的。

ago, what kings of life-forming materials the asteroids may be made of, and how our planets formed.

前，小行星的生命形成材料可能是由什麼王，以及我們的行星是如何形成的。

Although Lucy won't be landing on any of the asteroids, the craft will be mapping their

雖然 "露西 "號不會在任何小行星上著陸，但該飛船將繪製它們的地圖

surface geology, color, composition, densities, AND will even be keeping a look out for surprising

地表的地質、顏色、成分、密度，甚至會留意到令人驚訝的

mini satellites or rings that the asteroids could be pulling in. Now how will it do this?

小型衛星或環，小行星可能會被拉進來。現在，它將如何做到這一點？

Well of course a spacecraft wouldn't be anything without its sweet suite of instruments.

當然，如果航天器沒有一套可愛的儀器，它就什麼都不是了。

Lucy may be over 13 meters long, but all its  remote-sensing instruments will actually be

露西的長度可能超過13米，但它的所有遙感儀器實際上都將是。

kept in the body of the craft which is less than a meter in length.  The first is L'Ralph

保存在長度不足一米的飛行器主體中。  第一個是L'Ralph

which is a multispectral visible imaging camera and infrared spectrometer. This instrument

是一臺多光譜可見光成像相機和紅外光譜儀。該儀器

will be determining how active the asteroids are by looking at the unique composition of

將通過觀察小行星的獨特組成來確定小行星的活躍程度。

silicates, ices, and other organics. Next up is  L'TES, the thermal emission spectrometer.

硅酸鹽、冰和其他有機物。接下來是L'TES，熱發射光譜儀。

This instrument is similar to what's on OSIRIS-REx, and it will help Lucy understand

這臺儀器和OSIRIS-REX上的儀器很相似 它能幫助Lucy瞭解...

how heat interacts with the asteroids: what's their thermal inertia like, how do they retain heat, and

熱量如何與小行星相互作用：它們的熱慣性是怎樣的，它們是如何保持熱量的，以及。

what does all of that mean about their composition. And then there's L'LORRI, which is the Long

這一切對他們的組成有什麼意義。然後是L'LORRI，這是朗

Range Reconnaissance imager. It's basically a high-def camera that will be taking detailed

範圍偵察成像器。它基本上是一個高清晰度的相機，將拍攝詳細的。

pictures of the asteroids. And finally Lucy's High-Gain antenna that will help it

小行星的圖片。最後，露西的高增益天線將幫助它

determine the mass of each asteroid. Launching in October 2021, Lucy will need

確定每顆小行星的品質。露西號將於2021年10月發射，它將需

two gravity-assists from Earth, meaning it will use our planet to gain momentum on the

來自地球的兩個引力輔助，意味著它將利用我們的星球獲得動力，在地球上運行。

first leg of its journey. Lucy will meet its first asteroid from the main asteroid belt

旅程的第一段。"露西 "號將在主小行星帶遇到第一顆小行星

in 2025. Here Lucy will be able to do a bit of a test run with its instruments. And from there,

在2025年。在這裡，Lucy將可以用它的儀器做一下測試。而從那裡。

the craft will make its way over to the outer part of our solar system towards the first

飛船將駛向太陽系的外側，向著第一艘飛船飛去

Trojan asteroid cluster. There it will meet four other asteroids,and then loop around

木馬座小行星群在那裡，它將與其他四顆小行星相遇，然後圍繞著

Earth once, meeting a binary asteroid pair in the second cluster. After 12 years, and

地球一次，與第二星團的一對雙生小行星相遇。12年後，和

8 asteroids, Lucy will be all wrapped up. With a meticulous course like this, timing

8顆小行星，露西將全部包攬。在這樣細緻的過程中，時間

is pretty vital. So unlike other NASA projects, like the James Webb telescope that can be postponed

是相當重要的。所以不像NASA的其他項目，比如詹姆斯-韋伯望遠鏡，可以延期的

without too much mission compromise, LUCY only has a 20-day window to get off the ground

在不影響任務的情況下，"LUCY "號只有20天的起飛時間。

in October 2021. With this latest construction  approval, the team is on track for their highly

在2021年10月。隨著最新的建設準許，該團隊正按部就班地進行他們的高度。

anticipated launch. Lucy's discoveries could unlock the mysteries and answer the questions we have about

預期的推出。露西的發現可能會揭開神祕的面紗，並回答我們關於的問題。

the solar system, Earth, and even ourselves. I guess we just have to wait and see.

太陽系，地球，甚至我們自己。我想我們只能拭目以待了。

Fun fact: Lucy got its name from the fossilized human ancestor that helped us understand human evolution.

有趣的是：露西的名字來自於幫助我們瞭解人類進化的人類祖先化石。

So the NASA and the Southwest research institute team hope that this craft can do the same

所以，美國宇航局和西南研究院團隊希望這艘飛船也能做到這一點

for our understanding of solar system evolution. I'm excited to see what it finds! If

對我們理解太陽系的演化有幫助我很高興看到它的發現!如果...

you want to know more about space exploration, then subscribe to Seeker for all the latest interstellar news.

你想了解更多關於太空探索的資訊，那麼就訂閱《探索者》，瞭解所有最新的星際新聞。

Thanks so much for watching and I'll see you next time.

謝謝你的觀看，我們下次再見。