- Murray Leinster
- George O. Smith
- George O. Smith
- Edmond Hamilton
- Alan J. Ramm
- Jerome Bixby
- S. P. Langley
- J. Harvey Haggard
- Fox B. Holden
- William Oberfield
- Erik Fennel
- Joseph Farrell
- Percival Lowell
- Frederik Pohl
- Raymond Z. Gallun
- Alexander M. Phillips
- Laurence Manning
- Fritz Leiber
- Manly Wade Wellman
- Robert S. Ball
- M. W. Meyer
- United States. National Aeronautics and Space Administration
- United States. National Aeronautics and Space Administration
- United States. National Aeronautics and Space Administration
- Jet Propulsion Laboratory
- Karl Bohlin
- Martha Evans Martin
- George O. Smith
- E. Walter Maunder
- British Museum . Department of Mineralogy