Why life on the International space station sucks.
Introduction.
It's been said that there's nothing more noble that
humanity does than spaceflight- and it's us. We're the ones
that said that, just right now. Sure, humans do a lot of great
things, but we do a ton of completely awful things too. The
challenge of space travel though forces us to pool together the best of
humanity, because space wants nothing more than to kill you in
the most horrible ways possible.
After visiting the
moon though the rest of the world decided that sitting parked in low
earth orbit was good enough for humanity, but that doesn't
mean that our most recent, and greatest accomplishment in space-
the International Space Station- isn't any less of a wonder.
Weighing
in at 925,335 pounds- or 419,725 kilograms for nations who didn't land
on the moon- the ISS is 73 meters long and 109 meters wide.
Aside from the earth, the ISS is the single largest human
inhabited structure in the entire universe. In fact,
it's the largest thing built by humans to ever exist
outside of the planet. But as awesome an accomplishment as the ISS
is, the simple fact is that life in space is tough.
Turns out humans are
pretty badly adapted by evolution for living outside
the earth's protective atmosphere- who knew? So if your dream
is to become an astronaut, get ready to learn why life on the ISS
absolutely sucks. -Working Out, All The Time Humans evolved on earth, but
in the last sixty or so years we decided that earth wasn't
good enough anymore and just like the Jeffersons, we moved on
up to a deluxe apartment in the sky.
Sort of. Turns out though that trying to live somewhere you didn't evolve to habitate comes with some pretty serious health effects. On earth we have the gentle but constant pull of gravity keeping us firmly in place and occasionally reminding us that flying through the sky in giant metal tubes is blasphemy (animator, include scene of a plane going down here).
All that gravity had a pretty
profound effect on the evolution of our physiology, and very quickly after
starting their respective space programs, both the USSR and
the United States discovered that fact.
Gravity's incessant pull keeps our bones strong as our
body constantly reinforces them with calcium so that we don't
collapse into a heap whenever we try to stand up. It also has a myriad of
unknown effects on the way that blood circulates and even how
organs operate, and we're still learning about these effects as
NASA prepares for long-term human habitation of the moon, and eventually
Mars.
If you don't like exercising, then space is not for
you, because if you want to live in space you're going to have
to do a whole lot of exercising. Each day astronauts exercise for
at least two and a half hours using specialized equipment
meant to help them combat the effect of zero gravity on their bodies.
Without exercise, astronauts start losing both muscle and bone
mass because the body has nothing to fight against.
But it's not just becoming a smaller, shrimpier version of yourself that you have to worry about, because low gravity makes it harder for blood to get around your body, making you at risk of extreme fatigue and passing out. Fatigue, loss of bone mass and muscles, and the threat of constantly fainting- the ISS definitely sounds like a place it sucks to live in.
But if you have a
sensitive nose, you won't like our next reason why living in
the ISS sucks. -Recycled Farts- Take in a deep breath. Odds are you
probably smell whatever's immediately around you- but even if
that scent is bad, you know it's just not going to linger for
long.
If your brother starts getting a bad case of the
bottom-end grumps, you know all you have to do is open a
window and the stink is nothing more than a memory. Now
imagine that you can't open a window. Or, that you can never get fresh
air. That's the ISS.
One of the chief concerns of spaceflight is ensuring
that astronauts have enough breathable oxygen, because after
extensive scientific research man's greatest minds deduced
that breathing is pretty important for keeping people alive. But getting
things into space is extremely expensive, so expensive that
getting a few months worth of oxygen up to the ISS is simply a
non-starter without bankrupting a small nation.
That's why the ISS uses state of the art oxygen
recycling systems, which can reuse oxygen over and over
again. It does this by first splitting water brought up in
resupply missions into oxygen and hydrogen. That hydrogen is recombined
back into water using black magic- or, science, we guess-
which in turn means you can create more oxygen. But that also means that
you're going to be re-breathing the same fart for a very long
time.
Like Astronaut Scott Kelly- who spent a year in space-
said in an interview once, smells linger on the ISS, specially
because without gravity, scents can more freely spread. But bad smells
isn't all, because aboard the ISS everything- not just air- has to be
recycled, and that means water... as in the water that you pee
out. As another astronaut put it, yesterday's coffee is tomorrow's
coffee.
You'll be drinking so much of your own
pee in space that you'll make Bear Grylls proud. -Showers Can And Will
Kill You- Who doesn't love a nice hot shower? Well, on the ISS taking a
shower is not just practically impossible, but also
potentially deadly- as American astronauts found out back in
the Skylab days.
During the early days of space flight when crews would
be in space for a few days, they had no chance to clean themselves,
and it was said that the smell of returning astronauts and
cosmonauts was so strong that it was like running into a wall for the
crews that recovered them. When the US put its first space
station into orbit, Skylab, one of the things that NASA
determined would be important was crew comfort, and so it included a sort
of shower.
The Skylab shower consisted of a special curtain you
could pull up around you which cocooned you in a small tube-like
structure. Then you turned on water which shot down on you from
above- above of course being an extremely relative term in
space. You would then lather up and wipe yourself clean
with floating water, before vacuuming it all up. The problem though is
that in zero gravity water behaves more like Jello than... well, water,
and tends to clump together.
Also, it has nowhere to 'fall' to, so it just sort of
floats around heading wherever it last had momentum
towards. This proved to be particularly dangerous as large
clumps of water could easily be inhaled or float directly over an
astronaut's mouth or nose.
Also, there was the ever-present threat of water getting loose and floating everywhere, and on a space station jam-packed with delicate electronic equipment the last thing you want is an electrical short. Skylab's shower risks were so bad that when it came time for the ISS, NASA said astronauts would just have to resort to wiping down manually.
While many
astronauts will attest that you can get decently clean in
space wiping yourself down with wet towels, the truth is that you
can only get so clean when you can't run soap and water over you.
-Radiation Everywhere- On earth radiation is only a concern when
ordering sushi fished up off the coast of Fukushima, or when
one is trying to get the superpowers of a spider.
Space however is
pretty much lousy with radiation, and at such
extreme altitudes, astronauts on the ISS don't enjoy as many
of the benefits of the earth's magnetic field to protect them as we do.
You'll pretty much notice immediately that you're suddenly smack-dab in
the middle of a cosmic radioactive shooting gallery the first
time you close your eyes. With your eyes closed you'll start seeing
flashes of light like some sort of disco resurgence, but it's
not terrible 70s music making a comeback- its the universe trying to
murder you to death. Stars, black holes, and all kinds of other celestial
phenomena do science stuff all the time.
A lot of that nerd science stuff creates radiation.
That radiation then travels across the universe until it finds your
soft, squishy body full of DNA to destroy. The awesome light
show you're enjoying with your eyes closed is highly charged
particles smacking into your eyeballs and tricking your brain into
believing it's receiving a signal telling it that your eyes see light.
And the flashes are
just from the radiation hitting your eyes- imagine how much
more blasts the rest of your body and you can't even see. But of course
the ISS is well shielded against radiation, but nobody knows
just how well protected you would be in the ISS from a particularly
energetic release of radiation by the sun or a nearby star.
Even with low levels of radiation though, the fact is your DNA's
still being cooked over weeks, months, or even years in space. What does
all that radiation do to your body? Well, we haven't observed
enough individuals for long enough who've endured long-term
spaceflight to really know yet.
Most scientists agree that astronauts have a
higher chance for cancer, and maybe like a .01% chance of
superpowers, but just how big a chance for the big C is unknown. What is
for sure though is that if the ISS's shielding ever failed or was damaged
somehow, and a strong blast of radiation washed over it, you'd
be cooked faster than popcorn on high.
Speaking of cooking
though, if going to space makes you hungry, enjoy your food
while you still can here on earth because in space... -The Food Is
Terrible- You can't really cook in space, at least not in the conventional
sense- we're pretty sure most of our fans already knew that.
Lugging up the supplies for making a home cooked meal in space
would be pretty wasteful use of very limited space on cargo flights.
Plus,
how would you even keep
pancakes from just floating off a pan?
Instead, all space
food comes in plastic packaging, and while you may have an oven
to heat it up, it's all pre-cooked. NASA does try to provide
variety in order to keep morale up, but the simple fact is that
pre-cooked meals taste universally terrible, and even more so
when the actual food you can serve on the ISS has to be something that
won't make a giant mess.
Macaroni and
spaghetti with meatballs is a staple item, but forget about a nice stew or
lentil soup. Condiments are available, though salt and pepper come in
liquid form- and we have no idea what that even means nor do
we want to find out. The reasoning is solid though- salt
and pepper in their normal forms would simply float away and
get just everywhere. It's a good thing that condiments are
available, because you simply won't taste much of your
food unless its lathered in pounds of condiments. If you've ever seen
footage of astronauts in the ISS, no doubt you've noticed they all look a
bit puffy in the face.
That's because
without gravity all the fluids in your head go on a
free-for-all, floating around wherever they like. In turn,
this makes astronauts congested, and if you've ever had a really
bad cold then you know that unless you're eating wasabi by the
spoonful, you really can't taste much.
Terrible food, radiation
that will kill you, recycled farts, and showers that'll drown
you- life on the ISS definitely sucks, which only makes us
admire more the men and women who are even right now pushing the limits of
the final frontier. Since space will probably kill you.
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