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hello jeff williams onboard the

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international space station i'd like to

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uh to address a couple of your questions

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here here's a question from miami

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from ernie

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he writes when how and why the iss

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pivots

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its orbit when the

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space shuttle is visiting the iss in

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other words uh why do the columbus and

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the japanese kibo modules

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are on there on the leading edge of the

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space station as it orbits during normal

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operations versus being in the trailing

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edge with the russian modules leading

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the station when the shuttle visits the

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station well the shuttle docks to the

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space station at the very forward end of

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the space station

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but because the forward end of the space

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station is more vulnerable to debris

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hits from micro meteorite

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and other debris

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that's that's up here in orbit that

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might possibly hit the station

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we after the docking takes place after

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the space shuttle is docked to the space

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station we actually rotate the space

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station shuttle stack around 180 degrees

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so that the space shuttle is at the back

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end and the russian segment or the back

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end of the space station is actually

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leading

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the in the velocity vector uh so that's

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to to add a little bit of protection for

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the space shuttle uh to protect its

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thermal control system uh for the return

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here are a couple of questions about the

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butterflies we had on board as as you

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know we had

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eggs that were brought up that hatched

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into uh caterpillars the caterpillars uh

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made their chrysalises

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and after they

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spent their time in the chrysalis they

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popped out and they were butterflies and

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we had them on board

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for a while uh the first question is do

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you think it was a good idea to bring

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monarchs to space and this comes from a

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fifth grader in indianapolis

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and of course uh i think it was a good

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idea to bring monarchs to space it's a

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good idea to bring lots of things

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to space to study them to understand

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why they work how they work

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to

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this case of life

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and how gravity impacts it and whatnot

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so that we can apply that to uh to other

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things whether it be

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astronauts going for a long-duration

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flight out to another planet or to the

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moon to mars etc or perhaps there'll be

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some indirect benefit from these kinds

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of studies

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for life on earth and there has been

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much of that in the past so it's

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certainly a good idea to study things

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now the monarchs were brought on board

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primarily as a school project to

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increase interest among students

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around the world on

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science and engineering and space

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technology and all of that

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because that interest needs to be

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fostered

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because

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the kids that are in school now are

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going to be the next generation of

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scientists and engineers and technicians

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and that will be very important for the

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future the people of all over the world

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there's a related question that comes

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from the same place about the

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butterflies

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asking if we were going to let the

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butterflies fly around the iss well we

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wanted to we and the crew

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actually but unfortunately we couldn't

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do that they stayed in their incubator

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in their controlled environment and

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lived out their lifetime their normal

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lifetime

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and died and they'll be returned to

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earth

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but we observed them

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through a video camera that was

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installed inside

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and watched as they went through their

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life cycle unfortunately they they never