In The War of the Worlds (1898) H. G. Wells invented the myth of invasion from outer space. Martians land near London, conquering all before them, and ruin the metropolis; the fate of civilization and even of the human race remains in doubt until the very last..

The second book in the NYT bestselling Expanse series, Caliban's War shows a solar system on the brink of war, and the only hope of peace rests on James Holden and the crew of the Rocinante's shoulders. Now a Prime Original series.
HUGO AWARD WINNER FOR BEST SERIES
We are not alone.
On Ganymede, breadbasket of the outer planets, a Martian marine watches as her platoon is slaughtered by a monstrous...

Orson Scott Card and Aaron Johnston return to their Ender's Game prequel series with this first volume of an all-new trilogy about the Second Formic War in The Swarm. The first invasion of Earth was beaten back by a coalition of corporate and international military forces, and the Chinese army. China has been devastated by the Formic's initial efforts to eradicate Earth life forms and prepare the ground for their own settlement. The Scouring of China...

"The fifth novel in James S.A. Corey's New York Times bestselling Expanse series now being produced for television by the SyFy Channel! A thousand worlds have opened, and the greatest land rush in human history has begun. As wave after wave of colonists leave, the power structures of the old solar system begin to buckle. Ships are disappearing without a trace. Private armies are being secretly formed. The sole remaining protomolecule sample is stolen....

"The gates have opened the way to thousands of habitable planets, and the land rush has begun. Settlers stream out from humanity's home planets in a vast, poorly controlled flood, landing on a new world. Among them, the Rocinante, haunted by the vast, posthuman network of the protomolecule as they investigate what destroyed the great intergalactic society that built the gates and the protomolecule. But Holden and his crew must also contend with the...

One hundred years before Ender's Game, the aliens arrived on Earth with fire and death. Earth Afire by Orson Scott Card and Aaron Johnston is the story of the First Formic War.
Victor Delgado beat the alien ship to Earth, but just barely. Not soon enough to convince skeptical governments that there was a threat. They didn't believe that until space stations and ships and colonies went up in sudden flame.
And when that happened,

...

The man known as Cheradenine Zakalwe was one of Special Circumstances' foremost agents, changing the destiny of planets to suit the Culture through intrigue, dirty tricks and military action.
The woman known as Diziet Sma had plucked him from obscurity and pushed him towards his present eminence, but despite all their dealings she did not know him as well as she thought.
The drone known as Skaffen-Amtiskaw knew both of these people....

Using recovered alien technology, the nations of Earth have collaborated on an immense defense program to protect the planet. But nothing can prepare people for the aliens' advanced and unprecedented force. Only the ingenuity of a few brave men and women can bring the world back from the brink of extinction.

"The fate of the Chiss Ascendancy hangs in the balance in the epic finale of the Star Wars: Thrawn Ascendancy trilogy from bestselling author Timothy Zahn. For thousands of years The Chiss Ascendancy has been an island of calm, a center of power, and a beacon of integrity. Led by the Nine Ruling Families, their leadership stands as a bulwark of stability against the Chaos of the Unknown Regions. But that stability has been eroded by a cunning foe...

The Colonies' survivors have found their hopes of eluding their Cylon pursuers dashed by an invasion and occupation of their new home. As the fate of all human life hangs in the balance, friends become enemies, enemies become unexpected allies, and decisions are made that will haunt some people for the rest of their lives.