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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 in case you missed it this week

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we took a big step towards getting ready

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for the journey to mars how

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space lettuce for the first time ever

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station astronauts ate lettuce that was

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grown entirely in space on monday the

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crew harvested the latest crop of red

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romaine from the veggie experiment and

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were given the go to eat

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being able to grow food to supplement

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astronaut diets will be a big

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nutritional benefit to future missions

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to mars not to mention a welcome piece

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of planet earth for humans spending

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months or years in metallic spacecraft

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and they made sure to save some of that

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fresh food for their russian colleagues

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who are busy outside with the space walk

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cosmonauts gennady padalka and mikhail

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kornenko completed a five-hour 31-minute

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spacewalk on monday the pair installed

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some equipment to make it easier to get

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around outside the russian segment

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worked on a few external experiments

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took a photo survey and even tossed an

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old antenna overboard to burn up in

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earth's atmosphere

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also over on the russian segment the

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progress 58 cargo ship departed on

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friday freeing up space for some soyuz

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rearranging in the coming weeks

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this week's question comes from our

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friend aaron on youtube who wants to

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know what are the differences between

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the u.s and russian space walking suits

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well both are designed to operate in

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microgravity but there are a few design

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differences

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one of the biggest is how they're put on

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the us emu suit is split into two parts

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which means the astronauts put it on

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similar to regular clothing shirt and

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then pants

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meanwhile the russian orlon suit has a

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hatch in the back so the cosmonauts can

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crawl right into it

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astronauts in an emu also are kept at a

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lower pressure only 4.3 psi while the

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orlon is operated at 5.7 psi

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make sure to keep sending us your