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5 Things to Know About NASA’s Tiny Twin Polar Satellites
Called PREFIRE, this CubeSat duo will boost our understanding of how much heat Earth’s polar regions radiate out to space and how that influences our climate.
The data from the Polar Radiant Energy in the Far-InfraRed Experiment ( PREFIRE) mission will help improve our understanding of the greenhouse effect at the poles — specifically, the capacity of water vapor, clouds, and other elements of Earth’s atmosphere to trap heat and keep it from radiating into space. Each of PREFIRE’s cube satellites, or CubeSats, will use a thermal infrared spectrometer to measure the heat, in the form of far-infrared energy, radiated into space by Earth’s surface and atmosphere. But following the interactions between Earth’s surface and atmosphere, such as the amount of cloud cover temporarily effecting the temperature of the area beneath it, requires more frequent measurements.
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