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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 spring has sprung and flowers are

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blooming in space

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zinnia flowers burst forth this week

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inside the veggie plant growth facility

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used by astronauts to hone their

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microgravity gardening skills

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flowers have appeared in space before

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with nasa astronaut don pettit growing a

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sunflower and even writing a blog from

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the point of view of his space grown

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zucchini flower

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this current study will be used to help

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with the next flowering plant experiment

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in 2017 when astronauts will try out

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their green thumbs attempting to grow

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tomatoes and even though the holidays

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are well passed an elf showed up on

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station this week the crew set up the

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electrostatic levitation furnace or elf

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for short which is a japanese payload

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used for material science it uses an

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electric field to keep samples in place

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which frees them from the impurities

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that can come from the containers used

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in the melting process on earth then a

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laser heat samples to between 570 and

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5400 degrees fahrenheit measurements

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from this process could provide new

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insights for the procedures used in the

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production of high-performance steel

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here on earth

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this week's twitter question comes from

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nabeel who wants to know what keeps the

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station stable when astronauts do things

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like run on the treadmill that's a smart

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question and something our engineers had

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to think a lot about

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devices like the treadmill stationary

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bike and weight lifting machine actually

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have vibration stabilizers built in to

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separate them from the station structure

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itself

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otherwise the motion from the astronauts

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could have negative effects on the

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delicate science taking place all across

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the station or even alter the motion of

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the station itself

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keep sending us your questions using the