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houston station on space to ground

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take a deep breath

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welcome to space to ground i'm dan

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hewitt a lot of work goes into staying

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healthy in space and one experiment is

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taking a look at astronauts lungs the

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airway monitoring experiment from the

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european space agency places astronauts

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inside the station's quest airlock

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using special tools the amount of nitric

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oxide exhaled with each breath is

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measured by doctors since it is an

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important indicator to help diagnose and

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flame lungs and asthma developing the

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methods for astronauts to do this kind

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of analysis themselves will make them

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more self-sufficient when on

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long-duration missions way beyond earth

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when they'll essentially have to be

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their own doctors and could be exposed

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to new dusty environments on alien

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planets

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it's summertime which means it's time

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for another spheres competition

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the synchronized position hold engage

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reorient experimental satellites are

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back and gearing up for competition runs

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next week jeff williams and all

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excapocho worked with the project lead

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to put the self-contained satellites

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through their paces next week high

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school students will compete flying the

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satellites around the station to

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accomplish tasks relevant to future

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space missions

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this week twitter user cosmic dust wants

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to know how many calories astronauts

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have to consume daily given the zero

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gravity and less energy needed for

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moving well as it turns out their

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calorie count is the same as it would be

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here on earth or even higher

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in general astronaut energy requirements

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are the same in space as they are here

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on earth meaning if they're on an active

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2500 calorie a day diet down here

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nutritionists plan that for them in

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space however depending on how much they

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exercise and remember every astronaut

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averages about two hours of exercise per

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day some studies have shown they need

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even more calories while in space

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keep sending us your questions using the