Novel about a guy who travels through portals to bring back alien technology (jaunt?)
18199
Looking for sci-fi novel I read about humanity finding alien station on orbit of Earth
40450
Sci-fi novel about man picked up by aliens to represent earth in battle against galactic invaders
50339
Book identification: technologically-enhanced man (1970s/80s YA)
17389
Need help recalling name of sci-if story about earth evolving into electronic life forms
118490
Looking for title of book about a man with nanomachines in blood
154417
help remembering book title - multiverses/bladerunner-ish future. "sphere of influence. 2150"?
56157
SciFi novel about a vault on the Ocean floor
144490
'80s sci-fi novel about about an astronaut returning to Earth to find it devoid of human life
141480
Help identifing a book about people exiled to the distant past
142054
Seeking title / author of a story about alien first contact with Earth
18774
Novel about teleportation and a child assumed to be the savior of the galaxy
118194
Looking for the title of a book about alien invasion, mining asteroids and using lasers to defend earth
93462
Time Travel young adult novel from late 80's
60657
Title of a book telling about people teleported to a hostile planet while in deep meditation
17303
Young adult book about a boy(?) who gets sent through a portal to another world which is really the distant future
17094
Identity novel, short story or book series... slower than light space battles, time dilation and boardings, several planets
92271
70s/80s Sci-Fi book with teleport gates on sub-light spacecraft and an army space suit