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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 Huot

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spacewalks are all the rage this month

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the station astronauts completed the

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second u.s. spacewalk in as many weeks

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on wednesday reid wiseman suited up

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again this time joined by fellow nasa

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astronaut butch Wilmore for a 6-hour 34

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minute excursion into the vacuum of

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space the pair swapped out a faulty

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voltage regulator which helps control

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power from one of the station's solar

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arrays they then relocated a number of

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cameras wireless antennas and other

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items necessary to prep the station for

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a little rearranging happening next year

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and next week cosmonauts max suraev and

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alexander samokutyaev get their turn to

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venture out on the third and final

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planned spacewalk of expedition 41 last

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week we told you about an experiment on

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station that's using yeast to test a

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potential tumor treatment this week

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we're gonna look at an experiment that's

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examining a different strain of use it's

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actually responsible for some very

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common infections Micro 8 is the latest

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in a line of studies using micro

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gravity's influence on tiny microbes to

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better understand the effects they can

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have on our bodies scientists have

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discovered that while in space certain

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pathogens are more resistant to

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traditional treatment gaining a better

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understanding of how these pathogens

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grow and develop into this state could

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lead to better treatment for infections

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both in space and on earth this week's

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Twitter question comes from a fourth

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grader who wants to know if the moon is

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the only place besides the ISS that

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astronauts have walked absolutely not

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spacewalks have been a part of almost

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every major step in human spaceflight

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the first American to enter the vacuum

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of space was Ed White during project

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Gemini all the way back in 1965 leading

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into Apollo with spacewalks happening

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both on and off the moon activity

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continued outside of early US and

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Russian space stations like Skylab and

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Mir and on into the shuttle program

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where astronauts worked outside the

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craft to repair satellites telescopes

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and of course to build the International

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Space Station make sure to keep sending

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your questions and comments using the