Free Science Images
Here are few graphics for use in talks, posters, websites, or whatever. Just use the download links on the right to access the full resolution version. (If you do use them, please provide attribution as outlined in the CC license below each image. Go ahead and send me a note if you're not sure what this means.) If you want to see some other systems or structures here, let me know and I'll try to add some more. Have fun!