Related Links

PACS - A Photodetector Array Camera and Spectrometer for Herschel
http://pacs.mpe.mpg.de/

Spitzer Space Telescope
http://www.spitzer.caltech.edu/

Herschel: ESA's giant infrared observatory
http://www.esa.int/SPECIALS/Herschel/index.html

Observations: Seeing in infrared wavelengths
http://www.esa.int/esaSC/SEMS72T1VED_index_0.html