The "eyes of WISE," four infrared focal plane assemblies (FPAs), have
completed testing at the suppliers DRS and Teledyne Instrument
Systems, and have been delivered to the builder of the WISE Payload,
Utah State University's Space Dynamics Laboratory. These "megapixel" FPAs make it possible for WISE to achieve 500 to
500,000 times better sensitivity than previous all sky surveys at these
wavelengths.