Dava Sobel
Roger A. Freedman
William K. Hartmann
George O. Abell
Galileo Galilei
Eric M. Rogers
Johannes Kepler
Alexandre Koyré
Michael Zeilik
Timothy Ferris
Stephen Hawking
Frank H. Shu
Philip C. Plait
Owen Gingerich
Roy A. Gallant
Albrecht Unsöld
Leila Belkora
Sidgwick, J. B.
John C. Brandt
Patrick Moore