The Fantasy Review’s list of 6 Hard Science Fiction Books That Will Leave You Awestruck.
2001: A Space Odyssey (Space Odyssey, #1) by Arthur C. Clarke
From the blurb:
The discovery of a black monolith on the moon leads to a manned expedition deep into the solar system, in the hope of establishing contact with an alien intelligence. Yet long before the crew can reach their destination, the voyage descends into disaster . . .
Starship Troopers by Robert A. Heinlein
From the blurb:
Johnnie Rico never really intended to join up—and definitely not the infantry. But now that he’s in the thick of it, trying to get through combat training harder than anything he could have imagined, he knows everyone in his unit is one bad move away from buying the farm in the interstellar war the Terran Federation is waging against the Arachnids…
Timescape by Gregory Benford
From the blurb:
1962: A young Californian scientist finds his experiments spoiled by mysterious interference. Gradually his suspicions lead him to a shattering truth: scientists from the end of the century are using subatomic particles to send a message into the past, in the hope that history can be changed and a world-threatening catastrophe averted.
The Martian by Andy Weir
From the blurb:
Six days ago, astronaut Mark Watney became one of the first people to walk on Mars.
Now, he’s sure he’ll be the first person to die there.
After a dust storm nearly kills him and forces his crew to evacuate while thinking him dead, Mark finds himself stranded and completely alone with no way to even signal Earth that he’s alive—and even if he could get word out, his supplies would be gone long before a rescue could arrive…
2312 by Kim Stanley Robinson
From the blurb:
The year is 2312. Scientific and technological advances have opened gateways to an extraordinary future. Earth is no longer humanity’s only home; new habitats have been created throughout the solar system on moons, planets, and in between. But in this year, 2312, a sequence of events will force humanity to confront its past, its present, and its future…
Singularity Sky (Eschaton, #1) by Charles Stross
From the blurb:
In the twenty-first century, life as we know it changed. Faster-than-light travel was perfected, and the Eschaton, a superhuman artificial intelligence, was born. Four hundred years later, the far-flung colonies that arose as a result of these events—scattered over three thousand years of time and a thousand parsecs of space—are beginning to rediscover their origins. ..