A dilemma in the Nebula! Two spaceships meet in deep space. How do they establish trust, not only between their two crews, but also between their home worlds? A classic puzzle. The only way to warn home would be to return, and how do you know you were not being followed? Trade would be desirable, but how can you base an exchange of knowledge on unfounded trust?

Nine hundred thousand years ago, something annihilated the Amarantin civilization just as it was on the verge of discovering space flight. Now one scientist, Dan Sylveste, will stop at nothing to solve the Amarantin riddle before ancient history repeats itself. With no other resources at his disposal, Sylveste forges a dangerous alliance with the cyborg crew of the starship Nostalgia for Infinity. But as he closes in on the secret, a killer closes in on him because the Amarantin were destroyed for a reason.

One man—visionary billionaire restaurant chain magnate T. R. Schmidt, Ph.D.—has a Big Idea for reversing global warming, a master plan perhaps best described as “elemental.” But will it work? Ranging from the Texas heartland to the Dutch royal palace in the Hague, from the snow-capped peaks of the Himalayas to the sunbaked Chihuahuan Desert, Termination Shock brings together a disparate group of characters from different cultures and continents who grapple with the real-life repercussions of global warming.

From early work like "Rescue Party" and "The Lion of Comarre", through classic stories including "The Star", "Earthlight", "The Nine Billion Names of God", and "The Sentinel" (kernel of the later novel and movie 2001: A Space Odyssey), all the way to later work like "A Meeting with Medusa" and "The Hammer of God", this comprehensive short story collection encapsulates one of the great science fiction careers of all time.

The Collected Works of Philip K. Dick is a collection of 11 science fiction stories by Philip K. Dick.

Ellen Ripley finally returns to Earth, only to discover that LV-426 — where the crew of the Nostromo first came into contact with the deadly xenomorphs — has been renamed Acheron. Protected by Colonial Marines, the colonists seek to terraform the storm-swept planet against all the odds. But in the face of brutal living conditions and the daily struggles of a new world, there is humanity and hope.

On December 21st, 2012, the world was supposed to end. When the apocalyptic date came and went, the world concluded the Mayan prophecy was a myth. But it was not. The Earth was saved by extraordinary intervention from planet Akara — home to an awakened civilization far more evolved than our own.

Nothing quite prepared telepath Larry Greenberg for mind-to-mind contact with an alien. In the interest of science, Larry tapped the mind of Kzanol - and that was his first mistake. Kzanol was a thrint from a distant galaxy. He had been trapped on Earth in a time-stasis field for two billion years. Now he was on the loose, and Larry knew everything he was thinking. Thrints lived to plunder and enslave lesser planets - and what the planet Kzanol had in mind was Earth!

It starts with the dogs. They won’t stop barking. And then the earth shrugs - 8.9 on the Richter scale. It’s the world’s biggest earthquake since Lisbon in 1755, and it doesn’t hit California or Japan or Mexico, but New Madrid, Missouri, a sleepy town on the Mississippi River. Seismologists had predicted the scope of the disaster - but no one listened. For hundreds of miles around, dams burst, engulfing entire counties in tidal waves of mud and debris. Within minutes, there is nothing but chaos and ruin from St. Louis to Vicksburg, from Kansas City to Louisville.

They first appear as a series of dots on astronomical plates, heading from Saturn directly toward Earth. Since the ringed planet carries no life, scientists deduce the mysterious ship to be a visitor from another star. The world's frantic efforts to signal the aliens go unanswered. The first contact is hostile: the invaders blast a Soviet space station, seize the survivors, and then destroy every dam and installation on Earth with a hail of asteriods.

These 11 stories, including five Chinese Galaxy Award winners, are a blazingly original ode to planet Earth, its pasts, and its futures. Liu's fiction takes the listener to the edge of the universe and the end of time, to meet stranger fates than we could have ever imagined. With a melancholic and keen understanding of human nature, Liu's stories show humanity's attempts to reason, navigate, and above all, survive in a desolate cosmos.

A deadly virus spreads across the world as quickly as the passenger jets that encircle it. Within weeks most of the global population is dead. The human race is thrown back into the dark ages. The few left alive must rely on the most basic skills to survive one day to the next. Abby Grant ventures out into a strange new England, her husband dead, the fate of her son unknown. Jenny Richards flees London. Engineer Greg Preston arrives from abroad.

This is Doctor Who's first exciting adventure with the Daleks! Ian Chesterton and Barbara Wright travel with the mysterious Doctor Who and his granddaughter, Susan, to the planet Skaro in the space-time machine, the TARDIS. There they strive to save the peace-loving Thals from the evil intentions of the hideous Daleks!

Once, a girl called Ace travelled the universe with the Doctor - until, in the wake of a terrible tragedy they parted company. Now, decades on, she is known as Dorothy McShane, the reclusive millionaire philanthropist who heads the global organisation A Charitable Earth. But Dorothy is being haunted by terrible nightmares in which she’s abducted to an alien world. Nightmares that begin just as scores of young runaways are vanishing from the dark alleyways of London.

After the world's governments collapsed, the corporations took control. Houston's Pulsystems has sent an expedition to the lost Martian colony of Frontera to search for survivors, but Reese, aging hero of the US space program, knows better. The colonists are not only alive; they have discovered a secret so devastating that the new rulers of Earth will stop at nothing to own it.