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  • Welcome to hell.

  • Sorry, I meant Venus.

  • Welcome to Venus.

  • Some say it's Earth's twin.

  • But this world

  • is nothing like home.

  • And you're about to experience

  • this scorching hot landscape

  • firsthand.

  • Your mission is to spend

  • five seconds

  • on this hellish planet.

  • Trust me, these are going to be

  • a very long five seconds.

  • Venus is the second planet

  • from the Sun

  • and our nearest neighbor.

  • At its closest approach,

  • Venus is a mere

  • 40 million km (25 million mi)

  • away from us.

  • After just four months in space,

  • you'd finally be able

  • to witness this beautiful

  • but deadly planet up close.

  • Four and a half billion years ago,

  • Venus and Earth

  • formed in the same corner

  • of our Solar System.

  • This space rock

  • is about the same size

  • as Earth, and its gravity

  • is similar too.

  • But, unlike our home, the surface

  • situation on Venus is extreme.

  • We know this

  • because weve sent probes

  • to this scorching world.

  • Some probes orbited it,

  • some made a flyby.

  • And some even landed

  • on the surface of Venus.

  • But those didn’t last very long.

  • What happened to them?

  • Well, that’s what youre about to find out.

  • Time to make your way

  • down to the surface.

  • Don't these clouds look beautiful?

  • Well, don't inhale them.

  • These yellowish bands

  • streaking across the sky

  • are clouds of sulfuric acid.

  • If you could only get

  • a whiff of them,

  • you'd smell

  • the reek of rotten eggs.

  • But to do that,

  • you'd need to remove your helmet,

  • and I definitely do not

  • recommend that.

  • At a height of 50 km (30 mi) above

  • the surface, visibility is poor.

  • You'd hardly be able to see anything.

  • The incredibly thick

  • atmosphere would block

  • views of this planet

  • and its tens of thousands

  • of volcanoes.

  • The atmosphere is mostly made up

  • of carbon dioxide.

  • And because it's so thick,

  • it traps heat on the planet's surface,

  • keeping it nice and toasty.

  • Just how toasty are we talking?

  • Oh, you are going to find out

  • the hard way.

  • As you descend another 15 km (10 mi),

  • the haze would begin to clear.

  • The world below would finally reveal itself.

  • A rust-colored surface covered

  • in mountains and volcanoes.

  • Looks like this

  • volcano is still active.

  • You’d fly around a little

  • to collect some samples

  • and take in the view.

  • Yep, the atmosphere

  • is mostly carbon dioxide

  • with traces of nitrogen.

  • That checks out.

  • OK, well, let's

  • see if you can land here.

  • This looks like the spot.

  • Mission control,

  • am I clear for landing?

  • Mission control?

  • Um, looks like there’s no signal.

  • Initiating the landing sequence

  • without clearance.

  • Fingers crossed.

  • Landing your spacecraft would kick up

  • clouds of dust that would take

  • several minutes to settle down

  • in the soupy atmosphere.

  • As it clears, you’d look up into the sky,

  • but you wouldn’t find the familiar

  • yellow circle of the Sun.

  • On Venus,

  • it always looks like dawn,

  • no matter what time of day it is.

  • That's because

  • the Venusian atmosphere

  • only lets about 10% of the sunlight

  • that hits it reach the surface.

  • But wait, what were we saying

  • earlier about the space probe

  • that landed on Venus?

  • Oh yeah, Venera 13.

  • This Soviet probe

  • made its fatal landing

  • back in 1981.

  • It survived the descent

  • and lasted for

  • a whopping 127 minutes.

  • That's longer

  • than any other spacecraft

  • that had made it to the surface.

  • But then, Venera 13 gave

  • way to the violent,

  • uninviting environment

  • of this hell.

  • It was likely crushed under extreme

  • pressure, or it melted.

  • But it's too late

  • to turn around now.

  • You've lived through

  • the one-hour-long landing,

  • and you're so close!

  • All you need to do to complete

  • your mission is to spend

  • five seconds out there.

  • Yes, out there.

  • In the most extreme environment

  • you've ever been to.

  • You made it!

  • You can hardly lift your arms.

  • Even though Venus

  • has about the same gravity

  • as Earth,

  • you'd be feeling the sheer

  • weight of its immensely dense air.

  • It would feel like

  • you were walking through water.

  • Very hot water.

  • And you'd be glad you were wearing so much protective gear.

  • A quick look at your thermometer would tell you

  • that it's a sweltering 475 °C (900 °F) out here.

  • That's hot enough to melt lead.

  • Your pressurized suit

  • would be working hard

  • to keep you safe.

  • Without it,

  • you'd be crushed

  • under all that pressure

  • before you could even

  • complete your mission.

  • This isn’t so bad after all.

  • Hey, if a spacecraft

  • could last over two hours

  • some 40 years ago,

  • well, you and your shiny new gear

  • can survive longer, right?

  • Venus is right here

  • for you to discover,

  • just take a few more steps.

  • Suddenly, something distracts you

  • from the first-ever firsthand human analysis

  • of Venus' surface conditions.

  • Your protective suit breaks.

  • The drastic pressure shift

  • would immediately make you feel

  • like you were deep underwater.

  • With an atmospheric pressure

  • 90 times that of Earth,

  • Venus would be crushing you

  • from all directions.

  • At the same time,

  • you’d be struggling

  • to breathe in an atmosphere

  • without any oxygen.

  • Any the atmosphere

  • you did manage to inhale

  • would scald the inside of your mouth

  • and the top of your throat.

  • Unless you could scramble

  • very quickly back

  • to the safety of your spacecraft,

  • you'd be dead within seconds.

  • Hey, it could be worse.

  • High above you,

  • sulphuric acid clouds

  • would be raining acid.

  • But in this

  • unbearably hot environment,

  • the toxic rain wouldn’t

  • reach the surface.

  • It would evaporate

  • long before that.

  • So at least you wouldn't

  • have to worry about acid

  • dissolving your skin and bones.

  • That would be kind of gruesome.

  • You know, in hindsight,

  • maybe we shouldn't have sent you down

  • to explore this hellish surface.

  • We probably shouldve

  • terraformed Venus

  • into a more hospitable

  • planet first.

  • But that's a story

  • for another WHAT IF.

Welcome to hell.

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B1 中級 美國腔

在金星上待5秒鐘會發生什麼事?(What If You Spent 5 Seconds on Venus?)

  • 139 2
    Ken Antares 發佈於 2023 年 09 月 01 日
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