Larry Niven and Jerry Pournelle, award-winning authors of such best sellers as Footfall and The Legacy of Heorot, return us to the Mote, and to the universe of Kevin Renner and Horace Bury, of Rod Blaine and Sally Fowler. There, 25 years have passed since humanity quarantined the mysterious aliens known as Moties within the confines of their own solar system. They have spent a quarter century analyzing and agonizing over the deadly threat posed by the only aliens mankind has ever encountered - a race divided into distinct biological forms, each serving a different function: Master, Mediator, Engineer, Warrior.

All her life, Spensa has dreamed of becoming a pilot. Of proving she's a hero like her father. She made it to the sky, but the truths she learned about her father were crushing. The rumors of his cowardice are true - he deserted his flight during battle against the Krell. Worse, though, he turned against his team and attacked them. 

In the 23rd century, humanity is enjoying a comparative utopia. Yet life on Earth is about to change forever. Feriton Kane’s investigative team has discovered the worst threat ever to face mankind, and we’ve almost no time to fight back. The supposedly benign Olyix plan to harvest humanity, in order to carry us to their god at the end of the universe. And as their agents conclude schemes down on earth, vast warships converge above to gather this cargo. Some factions push for humanity to flee, to live in hiding amongst the stars, although only a chosen few would make it out in time.

Welcome to Ringworld, an intermediate step between Dyson Spheres and planets. The gravitational force created by a rotation on its axis of 770 miles per second means no need for a roof. Walls 1,000 miles high at each rim will let in the sun and prevent much air from escaping. Larry Niven's novel Ringworld is the winner of the 1970 Hugo Award for Best Novel.

Thirteen hundred gates have opened to solar systems around the galaxy. But as humanity builds its interstellar empire in the alien ruins, the mysteries and threats grow deeper. In the dead systems where gates lead to stranger things than alien planets, Elvi Okoye begins a desperate search to discover the nature of a genocide that happened before the first human beings existed and to find weapons to fight a war against forces at the edge of the imaginable. But the price of that knowledge may be higher than she can pay. 

Thousands of years ago, Earth’s terraforming program took to the stars. On the world they called Nod, scientists discovered alien life - but it was their mission to overwrite it with the memory of Earth. Then humanity’s great empire fell, and the program’s decisions were lost to time. Aeons later, humanity and its new spider allies detected fragmentary radio signals between the stars. They dispatched an exploration vessel, hoping to find cousins from old Earth. But those ancient terraformers woke something on Nod better left undisturbed. And it’s been waiting for them.

Being a sentient spaceship really should be more fun. But after spreading out through space for almost a century, Bob and his clones just can't stay out of trouble. They've created enough colonies so humanity shouldn't go extinct. But political squabbles have a bad habit of dying hard, and the Brazilian probes are still trying to take out the competition. And the Bobs have picked a fight with an older, more powerful species with a large appetite and a short temper.

From Brandon Sanderson, the number one New York Times best-selling author of the Reckoners series, Words of Radiance, and the internationally best-selling Mistborn series, comes the first book in an epic new series about a girl who dreams of becoming a pilot in a dangerous world at war for humanity's future.

It was January 2021, and Rick Deckard had a license to kill. Somewhere among the hordes of humans out there lurked several rogue androids. Deckard's assignment: find them and then..."retire" them. Trouble was, the androids all looked exactly like humans, and they didn't want to be found!

Best-selling science fiction superstars Larry Niven and Jerry Pournelle combine their talents with those of Steven Barnes in an extraordinary adventure of humankind’s first outpost in the farthest reaches of space. Light years from Earth, colonists land on a planet they name Avalon. It seems like a paradise - until native creatures savagely attack. It will take every bit of intelligence, courage, and military-style discipline to survive.

While the crew of the starship Flying Dutchman have been trying to assure people that hostile aliens do not have access to Earth, the UN Expeditionary Force has been stranded on the planet they nicknamed "Paradise". The Flying Dutchman is headed back out on another mission, and the UN wants the ship to find out the status of the humans on Paradise.

The Ruhar hit us on Columbus Day. There we were, innocently drifting along the cosmos on our little blue marble, like the Native Americans in 1492. Over the horizon came ships of a technologically advanced, aggressive culture, and BAM! There went the good old days, when humans got killed only by each other. So, Columbus Day. It fits. When the morning sky twinkled again, this time with Kristang starships jumping in to hammer the Ruhar, we thought we were saved.

Colonel Joe Bishop made a promise, and he's going to keep it: taking the captured alien starship Flying Dutchman back out. He doesn't agree when the UN decides to send almost 70 elite Special Operations troops, hotshot pilots, and scientists with him; the mission is a fool's errand he doesn't expect to ever return from. At least this time, the Earth is safe, right? Not so much.

At first, only a few things are known about the celestial object that astronomers dub Rama. It is huge, weighing more than ten trillion tons. And it is hurtling through the solar system at inconceivable speed. Then a space probe confirms the unthinkable: Rama is no natural object. It is, incredibly, an interstellar spacecraft. Space explorers and planet-bound scientists alike prepare for mankind's first encounter with alien intelligence.

Dennis E. Taylor, author of the best-selling Bobiverse trilogy, explores a whole different, darker world in this sci-fi stand-alone. Determined to give his wife and children a better life back home, Ivan Pritchard ventures to the edge of known space to join the crew of the Mad Astra as an asteroid miner. He's prepared for hard work and loneliness—but not the unthinkable. After coming into contact with a mysterious alien substance, Pritchard finds an unwelcome entity sharing his mind, and a disturbing physical transformation taking place.