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a new sensation on space to ground to

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space walks in two weeks check welcome

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to space to ground I'm Dan Huot to NASA

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astronauts just completed their second

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spacewalk in as many weeks Jeff Williams

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and Kate Rubin spent six hours and 48

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minutes working in the vacuum of space

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on Thursday completing all of their

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primary tasks and several guetta heads

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the pair retracted a backup thermal

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control radiator that had previously

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been deployed as part of an effort to

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isolate an ammonia coolant leak they

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also installed too high definition

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cameras that will provide new striking

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views of the earth and activities

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outside the station including the

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comings and goings of visiting

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spacecraft history was made this past

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weekend when DNA was successfully

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sequenced in space by the first time

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ever nasa astronaut Kate Rubens did a

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successful test of the biomolecule

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sequencer device demonstrating that

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sequencing DNA is possible in an

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orbiting spacecraft with a way to

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sequence DNA in space astronauts could

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diagnose an illness or identify microbes

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growing in the station and determine

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whether or not they represent a health

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threat looking further a space-based DNA

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sequencer could be an important tool to

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help protect astronaut health during

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long-duration missions on the journey to

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Mars and future explorers could also

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potentially use the technology to

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identify DNA base life-forms beyond

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Earth this week the station had a

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bird's-eye view of not one not two but

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three hurricanes cameras outside the

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station captured views of three powerful

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tropical weather systems from over 250

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miles above on Tuesday first it passed

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over the Pacific where hurricane Lester

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was packing winds of 125 miles an hour

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and right behind it was hurricane battle

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in with winds in excess of 130 miles an

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hour and then a few hours later the

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station flew over hurricane Gaston in

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the open Atlantic still churning along

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with winds over 100 miles an hour keep

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sending us your questions using the

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hashtag space-to-ground we'll see you