Inexpensive Detector Sees the Invisible, In Color

This is a false color image of a Goddard engineer in the far infrared (8-12 micrometer IR spectral band) taken with the 1 megapixel GaAs QWIP camera. Warmer temperatures are orange, cooler temperatures are dark red. Notice the thermal handprint left on her lab coat as she removes her hand from her pocket. Credit: NASA