Name: 如果地球繞著UY Scuti轉怎麼辦？ (What If Earth Orbited UY Scuti?)
Uploaded: 2021-01-14T10:39:50.000Z
Duration: 4 min 47 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。

Have you ever seen a sunrise like this before?

程度副詞

It's the largest star that we've ever discovered,

the amount of sunscreen you'd have to put on.

it's about 1,700 times larger than our Sun.

even fit into the center of our solar system?

Before we can answer that, we need  to get to know UY Scuti a little better.

Discovered by German astronomers in 1860,

UY Scuti is located in the Scutum constellation,

It's a pulsating star that swells and shrinks periodically,

usually shining about 400,000 times brighter than our Sun.

If UY Scuti took our Sun's place at the center of our solar system,

it would engulf everything as far out as the orbit of Saturn.

so maybe it's best to leave that huge star where it is.

Instead, we could just move the Earth to the orbit of UY Scuti.

But we'd have to be careful how close we place our planet to this gigantic star.

To be habitable, we'd have to put our planet in orbit

about 1.5 trillion km away from UY Scuti.

At this distance, it would take about 10,000 years for the Earth to complete just

That would change our entire concept of life as we know it.

That means that entire civilizations could rise and fall

without ever seeing more than one season.

For most people, summer might be something that they've only heard about through legends.

In case a perpetual winter isn't bad enough,

don't forget that the orbit around UY Scuti

would be located right in the middle of the Milky Way,

where cosmic rays and light from other stars

would shine bright enough to keep our sky blue all day and night.

On top of that, UY Scuti would be pulsing out extra heavy radiation about every 740 days.

And things would only get worse the longer we stay there.

which means it's a lot closer to its death than our Sun is,

When it does die, it's expected to explode with the force of more than 100 supernovas.

and it's the largest explosion that takes place in space.

So the force of 100 stars exploding would obliterate everything nearby.

Even if Earth was far enough away to survive the blast,

without the star, there would  be no heat and no light,

and life couldn't survive on Earth without those two things.

So, once again, What If has killed off the entire human race.

Maybe it's a better idea to leave the Earth where it is,

and appreciate how lucky we are to orbit our Sun.

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如果地球繞著UY Scuti轉怎麼辦？ (What If Earth Orbited UY Scuti?)

perspective

entire

concept

force