Name: 這個19歲的年輕人可以讓太空人免受太空垃圾的傷害。 (This 19-year-old can keep astronauts safe from space junk)
Uploaded: 2021-01-14T07:34:52.000Z
Duration: 4 min 31 s
Description: 【看影片學英語】數萬部 YouTube 影片，搭配英漢字典即點即查，輕鬆掌握單字發音與用法，長久累積看電影不必再看字幕。

The premise of the movie Gravity is that space debris hits the International

關係子句

Space Station, it causes utter destruction which is a little unrealistic,

but that scenario is actually what people are scared of.

at Stanford University, I'm also the founder of Seer Tracking.

data of current satellites and spacecraft and try to predict if there

will be any collisions with space debris.

space part or spacecraft, that is orbiting in low-earth orbit right now.

They can be as small as a paint fleck to as big as a completely dead satellite.

And they often travel as fast as 17,500 miles per hour and you can only imagine

with something traveling that quickly that its impact on another orbiting

could have such a big impact on essentially the success of the American

space program and mankind's advancement into space technologies.

series of videos that astronaut Scott Kelly published,

the Soyuz capsule which is an adjacent capsule to the International Space Station,

because there was fear that the spacecraft that he was in might be hit

1950's and really in the past few decades, that number has only skyrocketed.

There is a concept that, as the space debris collide with other space debris and

that fragmentation will cause even more space debris to occur.

Currently the method for tracking space debris is extremely inaccurate at times,

because the orbit of space debris changes so quickly.

have introduced is using artificial neural networks and artificial

It will provide a prediction, it will say

I think this is where the space debris will be in this future point in time.

And if we find the actual point in time in the future where the space debris is and

there is an error metric between the artificial neural network and where the

we can tell the neural network that oh you're wrong by

I am basically allowing the artificial intelligence to learn the

patterns of how the space debris positions are changing over time and it

will keep training itself until its predictions are actually very very accurate.

The primary concern would be for things already orbiting in space and

trying to allow these things orbiting in space to have enough time to move out of a

If my software predicts that there would be a future collision.

Another thing that it could be readily used for is predicting when is the best

optimal launch time for things like NASA and SpaceX,

a time window where to launch their rockets and other space cargo. They want

to look at a window where there isn't a lot of space debris.

of people are putting space debris on the back burner, they're saying it could

be potentially very dangerous someday, but right now it's not that big of a

concern because we haven't really had any casualties yet.

terrifying version of the Kessler syndrome would be a space atmosphere so

trashed, that you couldn't launch anything up without it being hit by

The whole goal is that we're trying to preserve our Earth, our

atmosphere for future generations in front of us and in order to keep

developing technologies that will succeed and go to space,

Now if you're interested in what it takes to get into

outer space, head over to our sister site The Verge and watch Spacecraft with

Check it out and subscribe for more videos.

字幕列表影片播放

這個19歲的年輕人可以讓太空人免受太空垃圾的傷害。 (This 19-year-old can keep astronauts safe from space junk)

essentially

approach

scenario

extremely