Sunset on Mars. Crop Circles in Kansas. Total Eclipse. Tenerife. Meteor Crater, AZ. European Superstorm. Lake Effect Clouds. Where on Earth...?
Find these and other images, as well as a learning lab and data animations, online courtesy NASA. If you are patient, also see Visible Earth (previously . . ).
posted by owhydididoit on Feb 23, 2007 - 12 comments

"The Science Service Historical Image Collection represents twentieth-century scientific research consisting of images and original captions as they appeared in period publications." For an easy browse, check out the fun randomly selected thumbnail images. Science Service is a nonprofit organization founded in 1921 to increase public interest in science. These images, culled from their past publications, span 40 years of innovations in electricity. Science Service currently publishes Science News.
posted by unknowncommand on Jan 4, 2007 - 6 comments

The Long Term Ecological Research Network is a collaborative effort involving more than 1800 scientists and students investigating ecological processes over long temporal and broad spatial scales. Check out their photo gallery. [more inside]
posted by owhydididoit on Sep 30, 2006 - 6 comments

Art of Science 2006 'images, videos and sounds—produced in the course of research or incorporating tools and concepts from science.' Previously on MeFi.
posted by dhruva on Jun 5, 2006 - 4 comments

Art of Science Competition 2005 - A gallery of images celebrating the aesthetics of research at Princeton University. (via Amygdala)
posted by madamjujujive on Jun 5, 2005 - 11 comments

The Harvard Brain Atlas has a veritable plethora of images of the brain, whether normal or diseased. Tours, 3-D Java exploration and a [very difficult] quiz are available. Plus: the top 100 brain structures!
posted by goethean on Aug 19, 2003 - 3 comments

Beautiful galleries of alchemical imagery selected and complemented with watercolor by Adam McLean. This is a fascinating collection of bizarre medieval illustration, as well as an interesting window on the proto-scientific worldview. His website features more images and even complete alchemical texts, for those inclined to explore further.
posted by eyebeam on Dec 9, 2002 - 7 comments

The Big Picture Book of Viruses is "intended to serve as both a catalog of virus pictures on the Internet and as an educational resource to those seeking more information about viruses. To this end, it is intimately linked to All the Virology on the WWW, and our collection of Virology Courses and Tutorials." Interesting electron micrographs include pictures of Marburg and Ebola viruses and T-4 like phages. Once a bio geek, always a bio geek. And for some other information about why viruses always matter see The 1918 Influenza Pandemic (sorry the page design sucks but it's a good read) and The American Experience: Influenza 1918. Are you sure that runny nose is just allergies?
posted by elgoose on Apr 22, 2002 - 2 comments