Laxmi Bachanalaya
Legally available public-domain books and openly licensed reading materials.
Jules Verne
H. G. Wells
E. E. Smith and Lee Hawkins Garby
John Jacob Astor
Cyrano de Bergerac
Charles E. Fritch
Edward W. Ludwig
Harold L. Goodwin
Murray Leinster
George Tucker
Richard M. Elam
United States. National Aeronautics and Space Administration
Harlan Ellison
Ray Bradbury
Jeff Sutton
William Tenn
Murray F. Yaco
These books are free to read. Each is in the public domain in the United States; check your own country's rules before you copy or share one.