Lone astronaut works with yesterday's self to repair space station
104095
Humorous time travel short story about a man's dealings with other versions of himself
14915
Story about lost colonized planet sent into orbit around "free" star
157316
Gravitational self-interaction
51698
Special summoning two Interplanetarypurplythorny Dragons consecutively
71125
Is there a way for an astronaut to rotate?
85100
Constant $g$ acceleration from astronaut's frame of reference
90979
Two humans land on a planet; one learns to communicate with aliens
48090
A spaceship crew stuck in a damaged spaceship that's losing power
99926
Are there any programmers in Star Trek?
125923
Did the Enterprise have a janitor?
862
Book ID: Astronauts and Lab Students can create portals through space
55796
Story about space explorers who communicate but then decide they must destroy each other
44794
Sublight Starship "passed" by FTL
84297
Crew at the end of Mass Effect 2
134762
SF novel about crashed pilot
64634
work in/at/on something
67028
Identification: a story about an entire spaceship converted to anti-matter