by performing the latest test on the core stage engines of the Space Launch System

對空間發射系統的核心級發動機進行最新測試，從而使其成為一個新的系統

destined to put the first woman and next man on the moon.

註定要把第一個女人和下一個男人送上月球。

But things didn't go quite as expected.

但事情的發展並不盡如人意。

In fact, the unsuccessful completion of this test actually warrants a re-do,

事實上，這個測試的不成功完成，其實是值得重做的。

before we're ready to take one small step or even a giant leap again.

在我們還沒有準備好再次邁出一小步甚至一大步的時候。

So it comes as no surprise, that after almost 50 years

是以，毫不奇怪，經過近50年的時間。

NASA is sending the first crewed mission back to the lunar surface since Apollo 17.

美國宇航局正在派遣自阿波羅17號以來的首次載人任務返回月球表面。

This time utilizing the Artemis Program, which is a series of lunar missions

這次利用阿爾忒彌斯計劃，這是一系列的月球任務。

that will be the catalyst for future explorations beyond the Moon.

這將是未來探索月球以外的催化劑。

But how will we get back to the moon, or even further out into our own solar system?

但我們將如何回到月球，甚至更遠的太陽系？

NASA has been prepping its new SLS rocket,

美國宇航局一直在為其新型SLS火箭做準備。

and working with partners to build a new crew capsule known as Orion.

並與合作伙伴共同打造了一款名為 "獵戶座 "的新型乘員艙。

In addition to the capsule, SLS can also carry astronauts and cargo to the Moon in a single mission.

除了太空艙，SLS還可以在一次任務中攜帶太空人和貨物前往月球。

But the rocket wasn't just designed to get humans back to the Moon.

但火箭不僅僅是為了把人類送回月球而設計的。

In fact, it's the first deep space rocket developed for crewed missions by NASA

事實上，它是美國宇航局為載人任務研製的第一枚深空火箭。

since the famous Saturn V rocket, which was used for the Apollo Program.

自從著名的土星五號火箭，用於阿波羅計劃以來。

NASA defines the design of SLS as flexible and evolvable,

美國宇航局將SLS的設計定義為靈活和可演變。

which will allow for longer scientific robotics missions deeper into space.

這將使更長時間的科學機器人任務深入太空。

This is possible because of the multiple configurations of SLS

之所以能夠做到這一點，是因為SLS的多種配置。

that can achieve not only various payload capacities, but also maximum thrust.

不僅可以實現各種有效載荷能力，而且可以實現最大推力。

Making it adaptable for crewed and cargo missions to the Moon as well as other planets.

使其能夠適應載人和貨運任務，前往月球和其他星球。

Standing at roughly 64 meters tall,

身高大概64米。

the Core Stage of the SLS contains more than 2.7 million liters of propellant.

SLS的核心級含有270多萬升推進劑。

Broken down into five major sections, each plays a critical part in the success of the mission.

分為五個主要部分，每個部分對特派團的成功都起著關鍵作用。

The top of the Core Stage or the Forward Skirt

核心舞臺的頂部或前裙部

holds the on-board flight computers and avionics,

機載飛行計算機和航空電子設備。

which is basically the “Brains” of the rocket.

這基本上是火箭的 "大腦"。

The Liquid Oxygen and Liquid Hydrogen tanks each contain cooled propellant,

液氧罐和液氫罐各裝有冷卻的推進劑。

clocking in at roughly 2 million liters of liquid hydrogen

約200萬升液態氫。

and about 742,000 liters of liquid oxygen.

和約74.2萬升的液氧。

Joining the two tanks together is the Intertank,

將兩個油箱連接在一起的是Intertank。

which also functions as an attachment point for the forward booster,

它也是前部助推器的連接點。

and holds some onboard electronics for the Core Stage.

並容納了一些核心階段的機載電子設備。

Finally, channeling the propellant from the tanks into the 4 RS-25 Engines

最後，將油箱中的推進劑導入4臺RS-25發動機。

is the Engine Section, which also functions as the avionics needed to steer the engines.

是發動機科，也是操縱發動機所需的航電設備。

Together, this system produces a total of about 8.9 Meganewtons of thrust,

這套系統總共產生約8.9兆牛頓的推力。

accelerating SLS to a speed of Mach 23!

將SLS加速到23馬赫的速度!

The real engineering genius behind SLS is that NASA has incorporated technology

SLS背後真正的工程天才是美國宇航局將技術

and lessons from past crewed missions into the different configurations for SLS.

以及從過去載人飛行任務中獲得的經驗教訓，進入SLS的不同配置。

Most noticeably, is the famous orange foam-covered external tank,

最引人注意的，是著名的橙色保麗龍覆蓋的外箱。

which was seen on Shuttle launches and is used in the core stage of the SLS.

在航天飛機發射中看到過，並用於SLS的核心級。

And as for power, when compared to the Saturn V's 34.5 meganewtons of thrust,

而在動力方面，與土星五號的34.5兆牛推力相比。

the smallest configuration of SLS puts out a hefty 15% more thrust.

SLS最小的配置就能多出15%的巨大推力。

Which leads us to the partially successful test of these retro engines.

這就導致我們對這些復古發動機進行了部分成功的測試。

Just recently NASA conducted the eighth Green Run series test on the RS-25 engines of SLS.

就在最近，NASA對SLS的RS-25發動機進行了第八次綠色運行系列測試。

Which is basically a series of evaluations to guarantee the completed system is primed for flight.

這基本上是一系列的評估，以保證完成的系統可以初步飛行。

This specific test requires the engines to fire for a little over eight minutes,

這個具體的測試要求發動機點火8分鐘多一點。

which mimics the amount of time it would take to launch SLS into space.

這模仿了發射SLS進入太空所需的時間。

And this test is known as the “Hot Fire Test” … for obvious reasons.

而這個測試被稱為 "熱火測試".原因顯而易見。

However, just 67 seconds into the 8-minute test,

然而，在8分鐘的測試中，僅僅67秒。

there was an automatic shut down because one of the engine's hydraulic systems exceeded the preset parameters,

由於發動機的一個液壓系統超過了預設參數，出現了自動停機的情況。

which were kind of low to begin with.

這是種低開始。

Despite completing several operations,

儘管完成了幾次行動。

the Green Run team has decided that an approximately four-minute test

綠色奔跑團隊決定進行大約4分鐘的測試。

would give them all the necessary data to confirm the core stage and engines are fully prepared for a real flight.

將給他們提供所有必要的數據，以確認核心級和發動機已經為真正的飛行做好了充分準備。

And before the next test can happen,

而在下一次測試可以發生之前。

the team is refurbishing the engines,

團隊正在對發動機進行翻新。

while also tweaking the thermal protective system

同時也調整了熱保護系統

and adjusting the logic parameters that engaged the automatic shutdown from the previous test.

並調整上一次測試中參與自動關機的邏輯參數。

All and all once these preparations are made,

一旦這些準備工作做好了，所有的一切。

the re-run of the test will be executed and then if all goes well,

將執行重新運行的測試，然後如果一切順利。

it should only take about one month to prepare the core stage for transport to NASA's Kennedy Space Center.

它應該只需要大約一個月的時間來準備核心階段，以便將其運送到美國宇航局的肯尼迪航天中心。

And hopefully, we'll be using SLS to get to the moon and beyond.

希望我們能用SLS登上月球，甚至更遠。

To learn more about the Artemis program, check out this countdown to Launch episode here.

想要了解更多關於《阿爾忒彌斯》節目的資訊，請點擊這裡查看發佈會倒計時的劇情。

Make sure to subscribe and thanks so much for watching.

一定要訂閱，非常感謝您的觀看。

I'll see you next time.

下次見。