Risultati per "alien" in Fantascienza tecnologica

Is our sun behaving differently from other stars? When an amateur astronomer discovers something strange on telescopic solar pictures, an explanation must be found. Is it merely artifact? Or has he found something totally unexpected? An expert international crew is hastily assembled, a spaceship is speedily repurposed, and the foursome is sent on the ride of their lives. What challenges will they face on this spur-of-the-moment mission to our central star?

It has been nearly 100 years since the Apollo moon landings, when Jack and Vladimir, two astronauts on a mission to Venus, discover a mysterious void related to indigenous life on the planet. Subsequently more voids are detected on Earth, Mars, Titan, and, quite ominously, inside a planetoid emerging from the Kuiper belt. Jack is sent to investigate the voids in the Solar System and intercept the planetoid - which, as becomes increasingly clear, is inhabited by alien life forms.

Reuben Jackson is the only one who still cares about Mars. In the shambles of the Great Collapse, Earth has abandoned the Mars explorers to their fate. But Reuben will make a stand for the Mars team—even against the powerfully united politicians and scientists. In too deep, he discovers hidden conspiracies and unexpected allies. As the conflict mounts on Earth, time runs down on Mars. Left to face Mars alone, Commander Donegan Moynihan and his team have no hope of surviving after their supplies are gone.

Copilots Msizi and Tariro are testing a newly constructed wormhole jump that presumably leads to unsettled habitable worlds. Then an explosion sends them off course, far from where they started and with little chance of ever making it back. Now they’re stranded on their new home for the diaspora. It’s called Malcolm X-b. But they’re beginning to wonder how many light-years from civilization they really are.

Science fiction masters Larry Niven (Ringworld) and Gregory Benford (Timescape) continue the thrilling adventure of a human expedition to another star system that is jeopardized by an encounter with an astonishingly immense artifact in interstellar space: a bowl-shaped structure cupping a star, with a habitable area equivalent to many millions of Earths. And which, tantalizingly, is on a direct path heading toward the same system the human ship is to colonize.

On a privately financed orbital habitat above the planet Uranus, political idealism conflicts with pragmatic - and illegal - methods of financing. Add a scientist who has funding to launch a probe deep into Uranus‘ ocean depths to search for signs of life, and you have a three-way struggle for control. Humans can’t live on the gas giants, making instead a life in orbit. Kyle Umber, a religious idealist, has built Haven, a sanctuary above the distant planet Uranus.

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William Blackhorse Singer, the last Navajo on a future Earth, is called upon to aid in protecting an alien diplomat from a powerful and hostile member of his own species. With the aid of a shape-shifting alien known as "Cat," he carries out the mission, with one condition: when the mission is over, Cat wants a return bout with the man who captured him, a chase with Singer as the hunted instead of the hunter . . .

Decades after Nathalie Hart's fateful mission to Bethesda, Earth teeters on the brink of collapse. As the planet's resources dwindle, the orbital elites of the ruling Yun Ju play a dangerous game with Earth's population from space. Jason Nevsky, driven by his aunt Nathalie's legacy, fights to save a starving planet. But when he uncovers a sinister political plot, he realizes the Yun Ju will stop at nothing to maintain their power. His mission becomes a desperate gambit that could either save Earth or doom it forever.

Summoned to the home planet of her family's business empire, space-fleet commander Kylara Vatta is told to expect a hero's welcome. But instead, she is thrown into danger unlike any other she has faced and finds herself isolated, unable to communicate with the outside world, commanding a motley group of unfamiliar troops, and struggling day by day to survive in a deadly environment with sabotaged gear. Only her undeniable talent for command can give her ragtag band a fighting chance.

Special Agent Waylen Brooks is charged with doing the impossible: preventing an alien incursion, without alerting the general population. Will his past finally catch up with him before he can succeed? Rory Swanson wants to forget the shadow following her, but every time she ignores it someone dies. Silas Gunn is the Key. With no other option, he must travel to Planet D to visit the field of shadows. Little does he know what he seeks is also seeking him. A lifetime of deception will need to be reckoned with in order to survive what's coming.

Agetha thought her fate was sealed, pushed to the edge of the colony to die. But with the revelation that the biomass is not only intelligent, but sentient, changes to colony are accelerating, threatening its very existence. Those who were controlled by the biomass once again have free will. Now, the human colonists are raising their voices and for the first time really influencing their new home. The planet-wide consciousness is slipping into a crisis of identity, when it doesn't even have a sense of self.

No science fiction author was more highly regarded than Grand Master Clifford D. Simak, winner of numerous honors. One of the genre's premier literary artists, Simak explores time travel and time engines; examines the rituals and superstitions of galactic travelers who have long forgotten their ultimate purpose; and even takes fascinating detours through World War II and the wild American West in a wondrous anthology that no science fiction fan should be without.

As the ship's alarms blare and smoke fills the corridors, Nathalie finds herself thrust into command amidst a crew of strangers, each harbouring their own secrets. A scrawled threat in her cabin, written in a language only she knows, confirms her suspicions. Someone on board will do anything to stop them reaching the colony and revealing Bethesda’s secrets.

Michael Baker is a 35-year-old, natural-born American citizen from Texas, a successful entrepreneur, and amateur astronomer. The scientific community mocks him when he publishes the time and coordinates where a supernova will occur. When it occurs, people start wondering who Michael is. The day after his third supernova prediction stunningly comes true, Michael abruptly takes over every television and radio in the world and announces that he is the Ambassador to Earth from the Intergalactic Confederation of Planets.

A mysterious object crests the Sun during a total solar eclipse. Cryptic radio-frequency noise jams TVs and radios worldwide. Sinister alien artifacts inexplicably appear in the capitals of the world's powers. Paralyzed with fear, society begins to crumble. Former NASA scientist Jasmine Evans is the first to spot the object and sound the alarm. Recalled to investigate the mystery, her team makes a critical discovery. But nothing is what it appears to be.

A troubled young woman is recruited by a race of ancient alien explorers to be their emissary to save the human race from extinction. The problem is that not everyone believes the world is doomed, and not everyone trusts the aliens' motives. Holly Burton will have to overcome opposition from world leaders, attacks by religious zealots, assassination attempts, intractable bureaucracies, and her own fears and doubts if she is to save the human race, not just from the coming apocalypse, but from itself.

In the early 22nd century, humanity has spread through the solar system - and their electromagnetic signals have traveled hundreds of light years. An alien race called the Oghaldzon has decided that mankind is dangerously insane...and must be forcibly taken under control. The invasion fleet's technology is decades ahead of Earth's best. They have more ships than the human fleets combined, and a seemingly-inexhaustible number of ground troops. And they're not afraid to kill billions of people.

Fleeing Earth after an alien invasion, the human race stands on the threshold of evolution. Their new home is Luna, a moon colony blessed with creature comforts, prolonged lifespans, digital memories, and instant sex changes. But the people of Luna are bored, restless, suicidal - and so is the computer that monitors their existence.

The secretive Roma Union has stepped forward. The warlike Maraukians are coming, and humanity must rally together or shatter into oblivion.