Four-Day Planet
Highest Rank
#
1
Colonization
out of 1 stories 
Other Rankings
#
2
Planetary Exploration
out of 3 stories
#
4
H Beam Piper
out of 6 stories
#
5
First Contact
out of 9 stories
#
6
Retro Sci Fi
out of 9 stories
#
13
Space Opera
out of 29 stories
#
48
Science Fiction
out of 91 stories
#
119
Adventure
out of 194 stories