A photo-illustrated, older elementary/middle science book, published by Houghton Mifflin as part of their "Scientists in the Field" series. 

Editor's Choice for 2002
- Booklist/ALA

"This fascinating title shows the thrill of scientific discovery up close.
- *Starred Review, Booklist

"Chockablock with clear color photos and liberally sprinkled with direct quotes that lend immediacy to the text
. . . a winner in every way."
- School Library Journal

One of the 'Selected Science Trade Books' October 2003
-Science and Children

A recommended book about science and scientists
--CCBC (For entire list, see http://www.education.wisc.edu/ccbc/bibs/40books/science.htm)