Here's a collection of photos of materials that glow in the dark. Why do objects glow? It could be due to radioactive decay or a chemiluminescent reaction or any of a variety of other types of luminescence.
- Graphic Index
- Text Index
PrevNext
From Anne Marie Helmenstine, Ph.D., About.com
©2009 About.com, a part of The New York Times Company.
All rights reserved.