Stoner knew. The fiery object hurtling toward the Earth was an alien spacecraft. But the world might never know. He was trapped in an iron cordon of secrecy, for the discovery had shattered the world power balance, setting off a brutal struggle for supremacy that raged from the sacred halls of the Vatican to the corridors of the Kremlin and the Pentagon. The forces of fear and treachery would use any weapon at their command, from mind war to sabotage, to keep the world in darkness.

When Kell and his team return to Earth many years after their departure, they find that their world has changed almost beyond recognition. Not only has a second wave of greenhouse flooding caused sea levels to rise, but society has been changed by the consequences of the climate shift. Few people want to face Jordan Kell's news. He must convince Earth's new rulers that the human race is in danger of extinction unless it acts to forestall the death wave coming from the galaxy's heart.

Here are tales of star-faring adventure, peril, and drama. Here are journeys into the mind-bending landscapes of virtual worlds and alternate realities. Here you'll also find stories of humanity's astounding future on Earth, on Mars, and in the solar system beyond - stories that always get the science right. And Bova's gathering of deeply realized, totally human characters are the heroic, brave, tricky, sometimes dastardly engineers, astronauts, corporate magnates, politicians, and scientists who will make these futures possible.

In a startling future that's coming closer every year, Chet Kinsman is an astronaut ace who has done everything one can in space - including commit the first murder. It's a secret he can never escape, not even on the moon, where he's head of the first U.S. lunar colony. A series of shocking yet strangely inevitable circumstances will force Kinsman to confront his hidden past and decide Earth's destiny. In a desperate countdown to nuclear annihilation, Kinsman will struggle against a deadly dilemma: if he rescues the world, he risks destroying himself.

Dr. Jake Ross, a university astronomer, wants nothing more than to teach a few classes each semester and continue his research. Instead, he finds himself aggressively recruited to be the science advisor to Frank Tomlinson, an ambitious politician with his eye on the US Senate. Tomlinson is in need of an edge that will allow him to defeat his opponent at the polls, and Dr. Ross can contribute just that: MHD. MHD, or magnetohydrodynamics, is a new innovation that will allow electricity to be generated efficiently and cheaply. But MHD is still in its infancy, and there are deadly risks.

Lauren didn’t ask to be a hero. But one night during the graveyard shift at Jodrell Bank, she captured an astonishing fast radio burst from an alien race. And just like that, the fate of the world was thrust into her hands. Now she’s put everything on the line to blow open the conspiracy of silence surrounding UFOs. She's on the run from MI5 and a secret organization determined to stop her. After a year of dead ends and a heart-breaking personal tragedy, she’s on the verge of being forced to abandon her personal crusade.

The time: 200 years after man's first landing on the Moon. There are permanent populations established on the Moon, Venus, and Mars. Outer space inhabitants have formed a new political entity, the Federation, and between the Federation and Earth a growing rivalry has developed. Earthlight is the story of this emerging conflict.

When John Bandicut sets out across the surface of Triton, he's hardly ready for the storm of chaos that's about to blow through his life. The alien Quarx that soon inhabits his mind is humanity's first contact with an alien life. The Quarx, part of an ancient galactic civilization that manipulates chaos theory to predict catastrophic events, seeks to prevent a cometary collision that could destroy the Earth. But it must have help. If Bandicut chooses to trust the Quarx, he must break all the rules - indeed, sacrifice his own life.

Mickey Barnes is an Expendable: a disposable employee on a human expedition sent to colonize the ice world Niflheim. Whenever there’s a mission that’s too dangerous—even suicidal—the crew turns to Mickey. After one iteration dies, a new body is regenerated with most of his memories intact. After six deaths, Mickey7 understands the terms of his deal…and why it was the only colonial position unfilled when he took it.

Prescient and scientifically accurate, Heart of the Comet is known as one of the great hard SF novels of the 1980s. First published in 1986, it tells the story of an ambitious manned mission to visit Halley's Comet, alter its orbit, and mine it for resources. But all too soon, native cells - that might once have brought life to Earth - begin colonizing the colonists. As factions battle over the comet's future - and that of Earth - only love, courage, and ingenuity can avert disaster and spark a new human destiny.

Jeff Dolan always wanted to be an astronaut. After helping a private space company build a ship that can travel to Saturn's largest moon in five months, he gets his chance. Shortly after launch, a devastating malfunction forces Jeff and the crew to make a choice: continue to Titan or go back home. As the truth about their mission unravels, one thing is clear: Someone on Earth knew about the system flaw and covered it up. Yet surviving the journey isn't the crew's only concern. Even if they make it to Titan, they will face another problem: Something is already there.

Here is the compelling story of the launching of Prometheus - Earth's first true spaceship - and of the men who made it happen. Dirk Alexson, chronicler of the greatest space adventure of all time: He was chosen to immortalize the incredible story of the men and their heroic mission. Sir Robert Derwent, Direct-General of Interplanetary-London Headquarters for the International Space-Flight Project: He was the man who got the mission off the ground and into the pages of history. Professor Maxton, the world's leading atomic engineer: He designed the huge ship's drive units....

A short story set in the universe of James S. A. Corey's NYT best-selling Expanse series. Now a Prime Original series. This story will be available in the complete Expanse story collection, Memory’s Legion.

A classic thriller from #1 New York Times bestselling author Michael Crichton, Sphere is a bravura demonstration of what he does better than anyone: riveting storytelling that combines frighteningly plausible, cutting-edge science and technology with pulse-pounding action and serious chills.

Experience Star Wars: A New Hope from a whole new point of view. On May 25, 1977, the world was introduced to Han Solo, Luke Skywalker, Princess Leia, C-3PO, R2-D2, Chewbacca, Obi-Wan Kenobi, Darth Vader, and a galaxy full of possibilities. In honor of the 40h anniversary, more than 40 contributors lend their vision to this retelling of Star Wars. Each of the 40 short stories reimagines a moment from the original film, but through the eyes of a supporting character.