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houston station on space to ground

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welcome to space to ground your weekly

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look at what's happening aboard the iss

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i'm josh meyerley three new crew members

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have arrived at the station to become

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part of expedition 39. the crew launched

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from the baikonur cosmodrome on tuesday

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afternoon u.s time and took about a nine

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minute trip into orbit

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three

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and

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one

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ignition

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and we have a lift off liftoff of steve

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swanson oligarchy and alexander

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schwartzoff to the international space

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station the three had quite a busy day

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leading up to launch after waking up

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they signed their hotel room doors and

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then headed to the launch site for suit

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up after saying farewell to their

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families and friends they waved goodbye

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and boarded their soyuz rocket

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the space station crew actually got the

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chance to see the launch take place as

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they were flying directly above baikonur

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when the rocket lifted off rick

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mastracchio captured this remarkable

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image where you can actually see the

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flare of the soyuz engines lighting up

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the entire launch complex the station

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was 260 miles high and traveling at 17

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500 miles per hour when rick took this

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photo it took a little longer than

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originally planned for the new crew

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members to get to the station docking

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was supposed to take place on tuesday

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about six hours after the launch but one

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of the engine burns didn't take place as

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planned so the soyuz defaulted to a two

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day trip to the iss docking on thursday

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night to join the onboard crew of rick

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mastracchio mikhail turin and koichi

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wakata

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this week's twitter question is why

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aren't there any refrigerators on iss

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well there are just not for food there

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are several freezers on board the

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station called melfis which stands for

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-80 laboratory freezer for iss these

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freezers store experiment samples as low

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as you guessed it minus 80 degrees

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celsius this allows these samples to be

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stored long term until they're ready to

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come back to earth so why don't we store

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food in the freezers well refrigerated

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food will spoil over time and

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refrigerators require a lot of power so

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it's better to fly freeze-dried foods

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that have a long shelf life make sure to

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keep sending us your questions and