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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 onboard the

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international space station i'm dan

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hewitt two russian cosmonauts executed a

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flawless spacewalk on wednesday flight

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engineers yuri malenchenko and sergey

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volkov accomplished all of their tasks

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in 4 hours and 45 minutes the pair took

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a number of experiments samples swapped

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out a few research payloads installed

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some handles to help future space

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walkers get around and even tested out a

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new tool which can glue special

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protection coatings to the outside of

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spacecraft and one of the experiments

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they brought inside is looking to unlock

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the mysteries of how life spreads in our

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universe

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the european expose r2 payload tested

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the survivability of 46 species of

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bacteria fungi and arthropods in the

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harsh environment of space a few were

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even in special compartments to mimic

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conditions on mars where we're currently

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searching for signs of life the purpose

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is to see how organisms are able to cope

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and survive in extraterrestrial

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conditions helping us understand how the

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seeds of life might survive the trip

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through outer space and even how they

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might have arrived on planet earth

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february is african american history

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month and to help celebrate i'm joined

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this week by nasa astronaut victor

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glover take it away victor

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thanks dan

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since we're talking about spacewalks i'd

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like to highlight one nasa space walker

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whose name is still in the record books

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bob kerbeem joined the astronaut corps

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back in 1994 and flew on three space

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shuttle missions on his final flight

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sts-116 in 2006 kerb completed a record

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four spacewalks during a single mission

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he teamed up with crewmates to complete

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a major rewiring of the station's power

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system during the first three and when

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one of the station's 110 foot long solar

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panels got jammed when trying to retract

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he headed out one more time to get it

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closed

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kirby retired in 2007 with seven

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spacewalks and more than 45 hours of

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spacewalking time to his name keep

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sending us your questions using the