Books like 'Unfathomed'
Readers who enjoyed Unfathomed by Ralph Kern also liked the following books featuring the same tropes, story themes, relationship dynamics and character types.
sc-fi action / adventure mystery alternate history hard sci-fi military, war & conflict space war military time-travel
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The Three-Body Problem by Liu Cixin, Ken Liu
Rated: 4.02 of 5 stars · 47 ratingsThe Three-Body Problem is the first chance for English-speaking readers to experience the Hugo Award-winning phenomenon from China's most beloved science fiction author, Liu Cixin.Set against the backdrop of China's Cultural Revolution, a secret military project sends signals into space to establish contact with aliens... -
![Extinction Code by James D. Prescott]()
Extinction Code by James D. Prescott
Rated: 4.01 of 5 stars · 30 ratingsWe were wrong about the origins of our species. For eons, the truth has remained hidden. Until now... Geophysicist Jack Greer believes he may finally have found the resting place of the meteorite that wiped out the dinosaurs sixty-five million years ago...Categorized as:
dystopia post-apocalyptic space-travel 21st-century action-adventure adult aliens alternate-history -
![Luna Marine by Ian Douglas]()
Luna Marine by Ian Douglas
Rated: 3.93 of 5 stars · 24 ratingsThe revelations on Mars -- a half-million year-old legacy of the vanished star-traveling Builders -- have fed the flames of catastrophic war. A beleaguered United States and its Russian and Japanese allies struggle to hold their own against the indomitable forces of the enemy United Nations... -
![Calculating God by Robert J. Sawyer]()
Calculating God by Robert J. Sawyer
Rated: 3.85 of 5 stars · 20 ratingsAn alien shuttle craft lands outside the Royal Ontario Museum in Toronto. Out pops a six-legged, two-armed alien, who says, in perfect English, "Take me to a paleontologist... -
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![Eon by Greg Bear]()
Eon by Greg Bear
Rated: 3.82 of 5 stars · 28 ratingsThe 21st century was on the brink of nuclear confrontation when the 300 kilometer-long stone flashed out of nothingness and into Earth's orbit. NASA, NATO, and the UN sent explorers to the asteroid's surface...and discovered marvels and mysteries to drive researchers mad...Categorized as:
military post-apocalyptic time-travel war 20th-century action-adventure adult aliens -
![Eifelheim by Michael Flynn]()
Eifelheim by Michael Flynn
Rated: 3.75 of 5 stars · 16 ratingsIn 1349, one small town in Germany disappeared and has never been resettled. Tom, a contemporary historian, and his theoretical physicist girlfriend Sharon, become interested. Tom indeed becomes obsessed. By all logic, the town should have survived, but it didn't and that violates everything Tom knows about history...Categorized as:
time-travel 21st-century action-adventure adult aliens alternate-history audiobook book -
![Redshirts by John Scalzi]()
Redshirts by John Scalzi
Rated: 3.81 of 5 stars · 43 ratingsEnsign Andrew Dahl has just been assigned to the Universal Union Capital Ship Intrepid, flagship of the Universal Union since the year 2456. It’s a prestige posting, and Andrew is thrilled all the more to be assigned to the ship’s Xenobiology laboratory...Categorized as:
dystopia military space-travel time-travel 21st-century action-adventure aliens alternate-history -
![Ultima by Stephen Baxter]()
Ultima by Stephen Baxter
Rated: 3.69 of 5 stars · 16 ratingsFresh from his latest collaboration with Terry Pratchett on the Long Earth sequence Stephen Baxter now returns to the mysteries and challenges first hinted at in his acclaimed novel PROXIMA.In PROXIMA we discovered ancient alien artifacts on the planet of Per Ardua - hatches that allowed us to step across light years of space as if we were stepping into another room. The universe opened up to us...Categorized as:
colonization dystopia military post-apocalyptic time-travel action-adventure adult aliens -
![Ancient Shores by Jack McDevitt]()
Ancient Shores by Jack McDevitt
Rated: 3.64 of 5 stars · 14 ratingsIt turned up in a North Dakota wheat field: a triangle, like a shark's fin, sticking up from the black loam. Tom Lasker did what any farmer would have done. He dug it up. And discovered a boat, made of a fiberglass-like material with an utterly impossible atomic number. What it was doing buried under a dozen feet of prairie soil two thousand miles from any ocean, no one knew...Categorized as:
time-travel action-adventure adult aliens alternate-history book fiction first-contact -
![Time's Eye by Arthur C. Clarke, Stephen Baxter]()
Time's Eye by Arthur C. Clarke, Stephen Baxter
Rated: 3.67 of 5 stars · 18 ratingsIn an instant, Earth is carved up and reassembled like a huge jigsaw puzzle. Suddenly the planet and every living thing on it no longer exist in a single timeline. Instead, the world becomes a patchwork of eras, from prehistory to 2037, each with its own indigenous inhabitants.Scattered across the planet are floating silver orbs impervious to all weapons and impossible to communicate with...Categorized as:
post-apocalyptic time-travel war action-adventure adult aliens alternate-history audiobook -
![Vessel by Andrew J. Morgan]()
Vessel by Andrew J. Morgan
Rated: 3.63 of 5 stars · 16 ratingsExcitement is high when the crew of the International Space Station discovers a mysterious object in orbit around Earth. But something goes wrong, and contact with the station is lost. When journalist Sean Jacob gets wind of the situation, he embarks on a journey to reveal the truth, winding his way into the biggest conspiracy to ever face mankind...Categorized as:
military space-travel action-adventure adult aliens alternate-history audiobook book -
![Axis by Robert Charles Wilson]()
Axis by Robert Charles Wilson
Rated: 3.52 of 5 stars · 32 ratingsWildly praised by readers and critics alike, Robert Charles Wilson's Spin won science fiction's highest honor, the Hugo Award for Best Novel. Now, in Spin's direct sequel, Wilson takes us to the "world next door"--the planet engineered by the mysterious Hypotheticals to support human life, and connected to Earth by way of the Arch that towers hundreds of miles over the Indian Ocean...Categorized as:
dystopia post-apocalyptic time-travel action-adventure adult aliens alternate-history apocalyptic
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