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Images: NASA feels the heat at research facility

Interaction Heating Facility arc jet heater core is one of the principal research areas where materials for space exploration are tested.
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1 of 7 Bill Detwiler/ZDNet

The Interaction Heating Facility arc jet heater core

The Interaction Heating Facility (IHF) arc jet heater core at NASA Ames Research Center in Mountain View, Calif., is the largest of its kind in the United States and one of the principal research areas where materials for space exploration are tested. The arc jets are basically room-size blowtorches used to blast materials for re-entry shields with intense heat, and as such, they get so hot they have to be cooled with thousands of water lines.

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2 of 7 Bill Detwiler/ZDNet

Heat shield materials get hit by the heat

Heat shield materials are the size of hockey pucks when tested in the arc jet and submitted to temperatures two or three times that of the sun.

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3 of 7 Bill Detwiler/ZDNet

Material meets 1,000 watts/cm(2) of energy

The material pictured here inside the arc jet is being subjected to energy of 1,000 watts per square centimeter.

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4 of 7 Bill Detwiler/ZDNet

Inside the arc jet facility

Inside the arc jet facility.

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5 of 7 Bill Detwiler/ZDNet

NASA researchers Frank Hui and Ernest Fretter

Frank Hui, pictured left, an aerospace test engineer, and Ernest Fretter, who oversees the arc jet facility at NASA Ames, where scientists are testing materials that will eventually insulate spacecraft traveling to the moon.

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6 of 7 Bill Detwiler/ZDNet

Temperature gauges inside the arc jet facility

Temperature gauges inside the arc jet facility allow scientists to simulate conditions and temperatures that a spacecraft would encounter on re-entry to the Earth's atmosphere.

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7 of 7 Bill Detwiler/ZDNet

Instruments measure temperature of heat-shield materials

Outside the arc jet facility, instruments measure the surface temperature of the heat shield materials to see how they react to extreme temperatures.

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