Astronaut Mike Hopkins ran around the world. Sort of. During a 12 mile run on a treadmill

the space station had orbited the Earth and traveled more than 25 thousand miles.

What the FAK.....the facts and knowledge on the daily life of Astronauts.

With a new sunrise every 90 minutes interrupting their natural circadian rhythms along with

loud engine noises, and floating in microgravity it's much harder to sleep in space than on

Earth. Astronauts have to tether sleeping bags to the ground, ceiling, or wall so they

don't float around and bump into things. Aboard the International Space Station, crew members

have individual sleeping quarters that are well ventilated so they're not surrounded

by the carbon dioxide they're exhaling. Ear plugs, sleep masks, and sleeping pills are

used to combat the unusual feeling of sleeping without gravity, yet still astronauts get

30 to 60 minutes less sleep per night on average compared to when they're on Earth.

Since water won't naturally fall into a drain system, astronauts get creative when it comes

to showering. Like taking a sponge bath where they moisten a cloth using warm packaged water

with soap already mixed in, rubbing themselves down, and drying off with a towel. Sometimes

they can shower in a plastic cylinder that goes from floor to ceiling to prevent water

from floating away. For their hair there is a rinseless shampoo that is applied, rubbed

in, and wiped off with a towel.

Because there's no washer or dryer - clothes are disposable. Shirts, socks, and underwear

are changed every day or two and pants once a week. That's just inside the stabilized

interior, if they're required to go out into space it gets a lot more complicated. Space

suits must protect from a pressurized atmosphere, provide oxygen, allow sight and movement,

protect from radiation and micro meteoroids, and do all of this while keeping the human

body at a comfortable temperature. There are 25 steps to take when getting into and out

of the 13 layer, 280 pound, 12 million dollar suit referred to as an EMU.

Astronauts select their food menus about 5 months before taking flight. Those selections

are sent in for review and analyzed for nutritional content because nutrition is vital to the

health of the crew. Each is provided with three meals a day plus snacks with two days

worth of emergency meals per person if needed. Aboard the shuttles and at the ISS foods come

prepared in four ways: thermostabalized, rehydratable, natural form, and irradiated. They're stored

in special packaging to prevent anything from floating around and even condiments like salt

and pepper are suspended in liquid to prevent particles from floating away.

For exercise there's a treadmill, stationary bike, or resistance training. Two and a half

hours a day are devoted to physical fitness. One reason this is so important is because

astronauts lose plasma throughout the body because body fluids move around in microgravity

and exercise is proven to increase the amount of plasma. When they're not working out or

walking in space they stay entertained by watching TV streamed from Earth, working on

the computer, and reading. Along with doing experiments on how things work in microgravity.

Toilets are equipped with footholds and both men and women can urinate standing up with

the aid of a funnel. When its time to sit down astronauts pull a bar over their laps

like when riding a roller coaster that fastens to their thighs. To avoid anything floating

around, space toilets use flowing air instead of water to flush.

When astronauts return from spacewalks and remove their helmets there's a lingering odor

of what space smells like left on their suits and it's described to be similar to burnt

metal.

I'm gonna leave you with this - who is the only US President to ever be present during

the launch of a shuttle?

Before we go here's last video's winner.

Leave your answers in the comments below - be sure to subscribe for more Vsauce2.

And as always - thanks for watching.