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foreign

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[Music]

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I'm Dan Hewitt it was a Sprint to the

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finish this week as the Expedition 69

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crew prepares to unleash a dragon before

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that can happen the crew will pack just

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shy of 4 200 pounds of cargo and science

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inside the capsule to return to Earth

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Dragon continues to be the main pipeline

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for us to return large amounts of stuff

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from station to Earth from completed

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science experiments ready for analysis

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to Hardware like big nitrogen and oxygen

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tanks that will refill and fly again and

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it isn't just like throwing your luggage

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into your car each of the crew will

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spend hours this week carefully laying

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out and accounting for every item

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returning they also take photos of the

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packed configuration for analysis done

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by teams on the ground calculating the

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weight distribution and center of

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gravity of dragon a critical piece of

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making sure everything gets home safe

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and critical for return though is the

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science with experiments running the

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full gamut making the trip home studies

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looking at everything from Crystal and

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plant growth to fire safety and muscle

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and heart health will be taking the

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plunge through Earth's atmosphere packed

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away inside Dragon we'll have dwarf

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tomatoes grown in our very own space

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Garden helping us learn how to grow

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nutritious food for Deep Space Explorers

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of the future crystals testing a new way

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to develop more efficient solar cells

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and semiconductors stuff the astronauts

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literally lit on fire in a very safe and

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controlled facility to better understand

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how different materials react in the

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space flight environment and blood

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samples used in one study to analyze

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muscle changes in astronauts which can

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help us better protect future Crews and

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help those struggling with muscle loss

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on Earth and another study looking at

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how we can treat arteries in your heart

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when they stiffen something that can

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happen to astronauts living in space for

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months at a time or to everyone here on

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Earth just as they grow older

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and because it's still the best part of

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my job let's knock out a few rapid fire

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ask NASA questions Charles asked when

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astronauts swallow food in space how

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does it get into the stomach does it not

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stop in the throat or somewhere

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answer your body doesn't use gravity to

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move food and water it uses muscles so

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everything works in microgravity try

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drinking water standing on your head it

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still works

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Frederickson asks how do they get the

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cargo out of the trunk of dragon answer

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big robotic arm aka the Canada arm 2.

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Edmund asked if the station is 260 miles

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up why does the trip on Dragon take 24

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hours straight line that's only 22 miles

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an hour on a rocket

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answer because you aren't driving to

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something sitting stationary 260 miles

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above you you're going to something

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flying past you at 17 000 miles an hour

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that also happens to be 260 miles of

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imagine you had a nine minute drive to

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get home but in that nine minutes your

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home moved 2500 miles farther away

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that's orbital mechanics and lastly

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Darth beat his ass is coffee consumed in

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space if so does it taste different and

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what kinds are there and the answer is

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yes there's actually a pretty wide

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selection most of the time though it

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comes in a pouch like other drinks on

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station you just add hot water and drink

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just last week though an astronaut was

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telling me about how drinking out of a

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pouch made them worry that they didn't

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like coffee anymore because you lose the

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aroma when it's sealed behind a straw

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but thanks to some ingenious engineering

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from NASA astronaut Don Pettit there is

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a special space cup that brings the

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sensory experience of coffee to

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microgravity without the mess of

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floating orbs of java

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welcome to space to ground your weekly

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look at what's happening on board the

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ISS I'm Dan Hewitt and that'll do it for

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us this week on Space to ground this is

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going to be my last one ever so I just

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want to close by saying thank you to

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everybody who's watched over the years

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thank you to all my fellow hosts thanks

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for giving me an excuse to grow my

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sweater collection uh and thank you to

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everybody that's made this show possible

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from Josh and Seth and Beth to everybody

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behind the camera Charles but most of

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all thank you to Dex for making this and

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so many other moments of my NASA career

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the best versions of themselves we'll

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that's a spaceship behind

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this thing was in space like

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like 20 minutes ago

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I'm gonna touch it