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hi my name is Dave Grohl and I lead the

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team responsible for assembling testing

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and launching the next rover to land on

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the surface of Mars curiosity the team

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just recently installed the mobility

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system onto the sides of the rover

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that's the wheels there's six wheels

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three in each side they all have to be

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verified that they're actuators work and

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then they're steering actuators to which

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what we use to actually turn the rover

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when it's on the surface there are ten

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small little motors that make up that

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mobility system and what the team is

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doing right now is they're going through

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and making sure that each of those

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wheels spins forward and backwards and

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rotates if necessary from a steering

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point of view so that when the rover

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gets down to the surface of Mars it can

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successfully navigate itself over the

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rocks and the Train that are actually

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there on the surface as soon as we

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finish up the mobility check out they'll

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be putting the mast on the top deck of

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the rover and the mast is more cameras

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and imaging that allows it to take

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stereo pictures off in the distance of

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Mars just like your eyes work in stereo

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pair this camera will also return the

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stereo imagery from the surface of Mars

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once that's complete then the front deck

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of the rover which is empty right now

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where we'll put the robotic arm the

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robotic arm is a device that reaches out

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six feet or so and actually touches the

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surface take samples and then deposits

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those samples back into the innards of

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the rover for the science instruments to

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analyze and determine what the elemental

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compositions are of the surface of Mars

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over here on my left you'll see the

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descent stage the descent stage just

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went through a test where they actually

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shook it just like it would experience

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when it's out going through the launch

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and they wanted to make sure that the

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the design held together and then

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nothing broke and everything was

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successful with that test - this has

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been your update and the Assembly of the

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curiosity vehicle as you can see

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curiosity's looking more and more like a

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rover everyday and the team is working