Scientific Illustration Resources
Online Image Databases: Astronomy
Anatomy | Animals | Astronomy | Birds | Fish | Geological | Insects | Microbiology | Plants
Astronomy Photograph Gallery
Astronomy Picture of the Day (one of my favorites)
Big Bear Solar Observatory
Deep-Sky.org
ESO Photo Gallery
Galaxy Catalog
Hubble Heritage Gallery of Images
Hubble Space Telescope Public Pictures
IPAC Gallery
ISO Science Results
Images of Radio Galaxies and Quasars
Isaac Newton Group of Telescopes
MSSS Viking Image Archive
NASA JSC Digital Image Collection
NSSDC Photo Gallery
Photovalet: The Planets
Spacewatch Pictures
Also See:
The Mapping of the Heavens
by Peter Whitfield
Celestial Treasury : From the Music of the Spheres to the Conquest of Space
by Marc Lachieze-Rey, Jean-Pierre Luminet, Joe Laredo (Translator)
The Folio Atlas of the Heavens
Andreas Cellarius