Name: 私たちの宇宙が別のものと衝突したら？ (What If Our Universe Collided With Another One?)
Uploaded: 2021-01-14T10:39:36.000Z
Duration: 5 min 21 s
Description: VoiceTubeの動画で発音を聞きながら英語表現を覚えよう！学べる英語：

This pretzel-shaped collection of galaxies

And it's about to collide with another universe.

is in the form of a "cold spot" in our Universe.

Planck satellite confirmed that this area

and it seems to be missing 10,000 galaxies.

At first, scientists were baffled by its existence,

that this spot might be a kind of scar or bruise

left from colliding with another universe.

And if this is the case, how long before it happens again?

Before we go any further, let me take a second

to address something that might have some of you scratching your heads.

and all other forms of matter and energy.

So if the universe basically means everything in existence,

then logically there can only be one of them, right?

Some scientists believe in the concept of the multiverse.

This theory states that our Universe wasn't the only one

that popped into existence during the Big Bang,

that there is an infinite number of other universes out there too,

and we just haven't found a way to see or measure them yet.

If this theory is right, then it's possible that all these other universes

could've grown at the same rate, at the same time, after the Big Bang.

If that's the case, then they might have banged into each other as they expanded.

And that brings us back to the cold spot.

The cold spot is a region of our Universe that's 0.00015 °C

when the rest of the Universe's temperature is so consistent,

scientists have started to think it's something more than an anomaly.

They think that the cold spot might be a scar  left over from a collision between universes,

and the crash might have moved a bit of energy out of that spot in our Universe,

But what would a collision of that magnitude look like?

Well, we can't say for sure, but there are some pretty cool ideas out there.

According to one physicist at the University of California,

if another universe came crashing into ours,

it would look like a giant mirror in the sky rushing towards us,

If this other universe collided with our own,

we could inherit a whole new set of governing laws of physics.

resulting in a slew of planets escaping the gravity of their stars,

sending them flying off into space at ridiculous speeds.

Without gravity, stars would cease to exist, and we'd be left in perpetual darkness.

This would make life on Earth, and throughout most of the universe, nearly impossible.

With no shining stars, we'd lose any means of nourishment or breathable air,

as plants would no longer be capable of transforming

starlight into energy through photosynthesis.

But as bad as that all sounds, it's not something we have to worry about,

since the chances of our universe colliding with another one

For one thing, we're not even sure that there are other universes out there to collide with.

any collisions would've happened at that point when they were expanding,

which would mean there's little to no chance of it happening again.

If you're going to worry about colliding with anything,

maybe you should pick something a little more realistic,

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私たちの宇宙が別のものと衝突したら？ (What If Our Universe Collided With Another One?)

potential

ridiculous

evidence

basically