Name: 詹姆斯-韋伯太空望遠鏡組裝完畢!終於組裝好了!| 科學秀新聞 (The James Webb Space Telescope Is Assembled! Finally! | SciShow News)
Uploaded: 2021-01-14T08:26:38.000Z
Duration: 5 min 5 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。

It's called the James Webb Space Telescope,

since SciShow started, because James Webb

could transform our understanding of the universe.

But honestly, being a fan of this telescope

After years of seeing it fail tests and get postponed,

Last week, after more than a decade of delays,

the Hubble Space Telescope, which will likely

it will be charged with a full complement of missions.

One half consists of the telescope itself.

along with the giant, five-layer sunshield

that will block light from the Sun, Earth, and Moon.

Blocking this light will help keep the telescope cold

while it's trying to monitor distant, dim objects.

The sunshield will solve a lot of that problem,

but the telescope will also have a bit of cold helium

to keep some of its instruments extra chilly.

and after that, they have to test them all together.

everything correctly and that the equipment

will survive deployment and the vacuum of space.

and the telescope will finally launch in March 2021.

Thankfully, even if Webb doesn't launch for a while,

there's plenty of other work to do in astronomy.

publication in The Astrophysical Journal.

certain exomoons by studying their planet's chemistry.

they've even found an especially exciting candidate!

could be as little as a few days on Earth.

Until recently, there wasn't much evidence

that a moon could exist in a stable orbit

was use math to confirm moons could live there.

字幕列表影片播放

詹姆斯-韋伯太空望遠鏡組裝完畢!終於組裝好了!| 科學秀新聞 (The James Webb Space Telescope Is Assembled! Finally! | SciShow News)

absolutely

technique

evidence

tricky