Stranded spaceman prepares a plan to defend pristine planet against land-grab and exploitation
109226
Short sci-fi story of plan devised by marooned spaceship pilot to save paradise world from development
136013
Are the shields and hull of the USS Enterprise-D capable of withstanding a direct nuclear strike?
92180
Scientists shown a fake anti-gravity device to motivate them to build the real thing
61277
Short story about a man stranded on a red planet with a sentient hand as his friend
20521
Boy born in space needing to somersault and spin to counteract earth's rotation
29005
How do the Death Stars retain atmosphere in the landing bays?
56725
Human vs. alien to avoid extinction by omnipotent being
29564
Trying to remember a book about a human male travelling to alien planet
117551
What limits the maximum sustainable surface charge density of a sphere in space?
111401
Short sci-fi story about Earth blockaded by other human colonies
38857
Story Identification: Human Resistance to Conquering Aliens
26391
SF Story about human adapting to alien environment
85547
Does anyone remember the title of a book where single-celled organisms save some astronauts?
86958
Trilogy: Alien-insects invade earth and are resisted by cyborgs
121028
Aliens target wrong planet, causing life on Earth rather than destroying it
150993
Astronaut is freed from mind parasite when he leaves Earth's gravity well
4557
Distant aliens receive signal with instructions on how to construct humans, long after Earth is extinct