Spitzer Documentation & Tools
Spitzer Space Telescope
Overview of the mission, and all documents pertaining to development and operations of the Spitzer Space Telescope.
Information on the active mission, including the Proposal Kit, mailing lists and Spitzer news.
Infrared Array Camera
Infrared Spectrograph
Multi-Band Imaging Photometer for Spitzer

IPAC Caltech
Jet Propulsion Lab NASA