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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 on board the

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international space station i'm dan

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hewitt two space walks around the

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horizon and there's a lot of work to be

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done before anyone heads out the door

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nasa astronaut scott kelly and chell

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lindgren are gearing up for spacewalks

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on october 28th and november 6th and the

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onboard crew spent much of the week

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getting the duo suits and tools together

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the first time spacewalkers plan to use

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the time they've spent getting

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accustomed to life in microgravity to

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their advantage

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hopefully our familiarity with living

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and working

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on the space station will help us with

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working outside

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the space station being very familiar

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with how your body moves how to do work

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how to find good body positions all of

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those things i think translate very

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nicely to the kind of work that we're

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going to be doing outside the space

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station

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this week chell lingvron worked in space

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on in space well it's called the inspace

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3 experiment and it's studying how

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magnetic colloidal fluids arrange

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themselves in microgravity these smart

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liquids quickly solidify when exposed to

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magnets and are great at absorbing

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impacts they're already found in shock

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absorbers and race cars and they're now

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being tested to help stabilize buildings

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in areas that get a lot of earthquakes

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this week's question is from ben who

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wants to know what the temperature is

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outside the iss well first remember that

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is a vacuum so your thermometer won't

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work the same way it does here on earth

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the main way to heat or cool things in a

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vacuum is through radiation which we get

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from sources like the sun the station

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has special paints and blankets which

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keep the outside surface between

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negative 58 and 122 degrees fahrenheit

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quite a range but without special

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protection materials like metal orbiting

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earth can get as hot as 500 degrees

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fahrenheit

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keep sending us your questions and