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[Music]

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the united launch alliance delta iv

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heavy one of the largest rockets in the

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world

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and it's not often nasa's launch

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services program chooses to launch it

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in fact they've never launched it until

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now

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i'm nikki fox project scientist for

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parker solar probe and tonight you will

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witness up close and personal this

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spacecraft being launched on her journey

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to the sun

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watch as we encapsulate the spacecraft

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as you can see parker's solar probe to

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your left looks pretty small compared to

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these enormous fairing halves that

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protect her during launch

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that is because the delta iv was made to

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launch satellites the size of school

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buses so why on earth would nasa need a

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rocket this powerful to launch our

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little 1500 pound spacecraft to the sun

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speed

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that's right pure and simple

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parker solar probe needs the most launch

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power she can get to leave earth and get

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to the sun it takes 55 times more energy

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to get to the sun than mars and we need

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all of it to get into the right orbit

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around our star

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park a solar probe built by the johns

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hopkins applied physics lab will keep

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her protective heat shield between

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herself and the sun once she's in that

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orbit

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the spacecraft will soar through the

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sun's 3 million degree plasma atmosphere

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that we call the corona and give our

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scientists some incredible data to

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answer long sought after questions about

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the sun

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[Music]

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back on the launch pad united launch

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alliance's delta iv heavy is just the

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right rocket three massive booster cores

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a cryogenic second stage and even a

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third stage specially made by northrop

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grumman to propel parker over 94 miles

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per second at spacecraft separation

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liftoff in five

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four

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three

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two

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one

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and liftoff of the parker solar probe on

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her way to unlock the mysteries of the

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that was awesome

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why don't we watch it again from the

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front side

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bye parker the coolest hottest mission