Blood vessels and astrocytes in aging rat retina, confocal imaging, 40x. Blood vessels are shown in blue; astrocytes (supportive cells of the nervous system) are mostly in red. As organisms age, changes in astrocytes might contribute to disease and degeneration. First Prize, 2005 Olympus BioScapes Competition.

| Spatial Axis | Image Size | Pixel Size |
|---|---|---|
| X | 1024px | —— |
| Y | 1024px | —— |