publisher's copyright was not renewed, many of the stories and nonfiction pieces published in If had their copyrights renewed by their authors. English
https://eol.jsc.nasa.gov/SearchPhotos/photo.pl?mission=ISS053&roll=E&frame=195209 operator: National Aeronautics and Space Administration serial number: 2071139
https://eol.jsc.nasa.gov/SearchPhotos/photo.pl?mission=ISS042&roll=E&frame=195209 operator: National Aeronautics and Space Administration serial number: 2071127
https://eol.jsc.nasa.gov/SearchPhotos/photo.pl?mission=ISS056&roll=E&frame=195209 operator: National Aeronautics and Space Administration serial number: 3502401