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houston station on space to ground

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welcome to space to ground i'm dan

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hewitt three space travelers returned to

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earth over the weekend after 115 days on

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orbit

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kate rubens takuya onishi and anatoly

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ivanishin bid farewell to their fellow

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space station residents before climbing

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into the soyuz ms-01 spacecraft for the

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trip home after a successful undocking

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and deorbit burn they plunged through

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the earth's atmosphere for a parachute

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landing in kazakhstan

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after initial tests at the landing site

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and a short helicopter ride they boarded

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planes back to home base rubens and

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onishi arrived back in houston just a

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little over 24 hours after their first

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steps back on earth

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newly appointed commander of the station

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shane kimbrough was busy this week in

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the station's quest airlock kimbrough

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spent several hours performing routine

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maintenance on u.s spacesuits onboard

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the station this helps keep them in good

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working order for upcoming spacewalks

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with the next set coming up in a few

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months the japanese htv-6 cargo craft is

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scheduled to launch in december and will

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deliver a new set of lithium-ion

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batteries used to power systems on

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station when on the dark side of the

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earth they'll be installed in a series

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of spacewalks by the expedition 50 crew

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this week's question comes from the old

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poet who wants to know what devices on

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board measure the radiation astronauts

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are exposed to well there's a lot of

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them as radiation is an important thing

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to keep an eye on

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there are several radiation area

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monitors scattered throughout the

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different modules of the station crew

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members also keep a small dosimeter with

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them usually in a pocket throughout

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their space flight that returns to earth

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with them and gets handed off to doctors

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right after landing there are also

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payloads like the russian matroshka r

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experiment and beam that are actively

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recording radiation exposure and

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regularly have samples and monitors

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returned to earth

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keep sending in your questions using the