Hey, guys!
How're you doin’?
Me?
– doin’ great, just packing!
Where am I going?
Glad you asked!
I'm setting off on a journey toward the nearest
black hole.
Yep, risky and brave, that's me!
But don't worry - I'll keep you in the know
by live-streaming my entire adventure!
So, make yourself comfortable and come travel
through space with me!
Ok, so, let me introduce my spaceship: the
name of this super-fast beauty is "the Invincible,"
and people won't create anything of the kind
for the next several decades.
How did I get a hold of it?
Well, I have my ways.
The thing is that space distances are seriously
long.
That's why traveling there would take way
more time than you'd like to spend on the
road!
For example, Voyager 1, a space probe launched
in 1977, was traveling out of the Solar System
at a speed of 40,000 miles per hour.
If my spacecraft moved at the same speed,
it would take me a whole 77,000 years to get
to the nearest star!
I mean, really?
It would also take me more than a billion
years to cross the Milky Way galaxy!
But luckily, the Invincible is much faster
than that.
Also, I almost forgot to introduce my companion
- sorry, Liam!
You see, Liam is a robot with AI (you know,
Artificial Intelligence).
That's why I have high hopes for him: I'll
have someone to talk to during the flight,
and he can help me if things get really tough!
And now, let the journey begin!
Here we go!…..3,2,1, blast off!
Wow, the Earth is growing smaller and smaller
by the second.
It seems like no time has passed, but the
spacecraft is already 200 miles above the
surface of our planet.
Since it's daytime, I can clearly see the
Great Lakes shining in the sun!
And oh boy, I've just spotted something moving
to the left of my ship!
Could it be?..
Right!
It's the International Space Station!
Did you know that the station is the most
expensive single object in the world?
Huh, no wonder, with a price tag of $100 billion!
This money would buy you 250 Boeing 747s or
two Louvre's with all the paintings and artwork
inside!
From my spacecraft, the ISS looks pretty big,
but I shouldn’t be surprised, since the
length of the station is over 350 feet, which
is more than the length of a football field.
But I don't have time to linger, a black hole
is calling for me.
Now, I'm about 1,300 miles over the surface
of the planet, and I start to spot satellites
here and there.
I've read that among satellites, there are
low and high flyers.
And while the lowest flying ones move approximately
1,250 miles away from Earth (which is the
length of 4 and a half Grand Canyons), the
highest reach 22,000 miles into space (which
almost equals the Earth's circumference, measuring
about 25,000 miles).
By the way, few people know that satellites
travel at a blinding speed, from 7,000 to
18,000 miles per hour!
Also, the higher a satellite is, the slower
it moves, relatively speaking.
For example, the weather-tracking GOES system
of satellites orbits Earth once a day at a
distance of 22,000 miles above your head and
reaches a maximum speed of 7,000 miles per
hour.
Meanwhile, the ISS, in low earth orbit, zooms
at over 17,000 miles per hour.
Well, the satellites are being left behind,
and my spacecraft is already taking Liam and
me up toward the Moon, about 240,000 miles
away from Earth.
That's the same distance you would go if you
went around our planet ten times in a row!
From here, Earth looks like a small, bright
blue ball hanging in the middle of nowhere.
And you know what else?
From my spacecraft, I can clearly see that
the Moon isn't a perfect sphere!
It's shaped more like... hmm... yeah, like
an egg!
Wow!
Anyway, bye-bye, Moon, we're heading somewhere
even further!
I see Mars, Jupiter, Saturn, and Neptune passing
by in all their glory.
And look, there's Pluto, who used to be a
planet but was later demoted.
From here, Earth looks like a small star that's
getting fainter and fainter as I'm moving
further away.
But wait, what's that?
Some object is approaching me at a high speed,
could it be...
TESLA?!
Whoa!
That was close - the thing just avoided a
collision at the last moment, and everything
happened too fast to see it clearly.
But I'm pretty sure what I just saw was a
Tesla...
Right now, I'm already really, really far
from Earth, like 100 astronomical units away.
The thing is that space distances are so vast,
you can't even calculate them in miles.
That's why scientists use the term "astronomic
unit," which equals 93 million miles – the
distance from the sun to Earth.
That means I'm 9.3 billion miles away from
our planet!
But w-w-what's happening?
Why is my spaceship shaking and rocking so
much?!
Ah, I see!
We're entering the termination shock, the
place where solar winds coming from the Sun
travel at a speed of 250 miles per second
and collide with the material that makes up
the galaxy's background.
There!
We made it through unscathed, but there's
another trial ahead - the Oort Cloud.
That means two things: first - we're on the
outskirts of the Solar System; and second
- we'll have to get through a cloud of icy
objects orbiting the Sun at a distance of
a 100,000 astronomic units!
In other words, it's 1.87 light-years away
from our star.
Phew!
It must be my lucky day since we got through
the Oort Cloud with just a couple of scratches
on the spacecraft's skin.
And voila! - we're heading out of the Solar
System just one-tenth of a light-year later.
By the way, if you were trying to reach this
point by car, the trip would take you more
than 19 million years.
And even if you piloted one of the fastest
spacecraft that exist nowadays, NASA's New
Horizons, you would still need 37,000 years
to complete the journey!
Bring a big lunch.
Alright, we’ve left the borders of the Solar
System, and now, I'm sitting in my spaceship
cabin, watching comets and asteroids pass
by.
Time to think about my destination.
In the center of pretty much every galaxy,
there’s a supermassive black hole.
For example, one is sitting right at the heart
of our Milky Way galaxy, about 27,000 light-years
away from Earth.
But even my ship wouldn't be able to get that
far before my 100th birthday.
That's why my destination is the stellar black
hole, nearest to Earth and much smaller in
size, but no less mysterious!
It's V616 Monocerotis (aka V616 Mon), located
3,000 light-years away, and weighing the same
as about 9 to 13 of our Suns!
A black hole is an eerie place where those
laws of physics we studied at school stop
working.
If a massive star runs out of its star fuel,
it becomes super-dense and buckles under its
own weight, collapsing inward and bringing
space-time along.
As a result, the gravitational field of this
new thing gets so strong that nothing can
escape it, not even light!
Right now, we're approaching the black hole,
and very soon, I'll send Liam to explore it
from the inside!
I won't go further than the horizon, aka the
point of no return, and you can probably guess
why, right?
Once an object crosses this invisible line,
it can't turn back, even if it's changed its
mind.
Anyway, Liam says he's ready to start his
journey.
There he goes, bravely plunging toward the
black hole while I'm recording everything
that's happening to him.
He’s accelerating; it looks like he’s
contorting and stretching, as if I'm looking
through a huge magnifying glass.
Interestingly, the closer to the horizon he
is, the more slowly he seems to move.
He’s trying to send me encoded light messages,
like we agreed to in advance, but the light
waves stretch to redder and lower frequencies,
"I'm Ok, I m O k..."
What’s happening?
Liam just froze, as if a gigantic finger has
pressed a pause button, and now, some force
is stretching him thinner and thinner!
Ah, I've read about this phenomenon - it's
the infamous spaghettification, which happens
in a super-strong non-homogenous gravitational
field!
The black hole's gravity force is stronger
at his feet than at his head; that's why he’s
getting stretched out like a piece of spaghetti!
Also, the sensors inform me that Liam is getting
hotter and hotter... and then….
nothing!
He just disappeared, and I can't see him anymore.
But since I did my research before the trip,
I know that Liam is in a state of free-fall
now, and feels no more stretching, scalding
radiation, or gravity.
Unfortunately, the connection is lost, and
he can't tell me anything about the inside
of the black hole.
Hmm, this is a moment I didn’t think through
well enough.
Anyway, I hope you're Ok out there, my friend!
And I think I'll head home to get ready for
my next space trip!
What about you?
Do you think I should go all the way and explore
this black hole myself next time?
Let me know down in the comments!
If you learned something new today, then give
this video a like and share it with a friend.
But – hey! – don't go getting spaghettified
just yet!
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Stay on the Bright Side of life!
