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Scientists are studying tiny atmospheric particles with NASA Armstrong’s ER-2 aircraft.

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These daring pilots fly above what’s called the Armstrong Line.

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That’s 63,000 feet.

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Above that line

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there's very little pressure so,

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your blood will start to boil.

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So the suit will fill up with air,

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and it'll put the pressure on the pilot’s body.

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Flying twice as high as commercial planes for up to 8 hours,

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these pilots need a way to drink and eat.

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We have different types of tube food,

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and they all connect

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the straw to their tube food.

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And then that fits right through

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a port in their helmet.

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So we had all kinds of like meat

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flavors like pizza and stroganoff

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and other kind of weird stuff

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that nobody ever liked.

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So we ended up getting rid of those,

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and now we have caffeinated apple pie.

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Chocolate pudding, which isn't half bad.

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This is the Zapplesauce.

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Those aren’t the only important tubes!

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This tube there, and that tube is plugged into another

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tube inside the airplane,

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which goes into a collection can.

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Once the pilot is suited up,

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it's off to the pad for takeoff.

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During the flight, science instruments on the ER-2

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will collect measurements to help validate NASA’s PACE satellite,

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improving ocean and atmospheric data across the globe.