It's been put there by a galactic intelligence intent on imposing harmony and cooperation on the different peoples of the universe. But to the inhabitants, the barrier evokes stark terror.

    Then came the announcement that the whole thing was a hoax. End of story. Case closed.Except that two agents of the most secret intelligence agency in the U.S. government were on the scene and disappeared without reporting back. Then four more follow up agents also disappeared. So the head of the agency and his two top agents went in and managed to get out with their discovery: an invasion is underway by slug-like aliens who can touch a human and completely control his or her mind. What the humans know, they know. What the slugs want, no matter what, the human will do. And most of Iowa is already under their control.Sam Cavanaugh was one of the agents who discovered the truth. Unfortunately, that was just before he was taken over by one of the aliens and began working for the invaders, with no will of his own. And he has just learned that a high official in the Treasury Department is now under control of the aliens. Since the Treasury Department includes the Secret Service, which safeguards the President of the United States, control of the entire nation is near at hand.

    2105, September: Intelligence Analyst Caine Riordan uncovers a conspiracy on Earth’s Moon—a history-changing clandestine project—and ends up involuntarily cryocelled for his troubles. Twelve years later, Riordan awakens to a changed world. Humanity has achieved faster-than-light travel and is pioneering nearby star systems. And now, Riordan is compelled to become an inadvertent agent of conspiracy himself. Riordan’s mission: travel to a newly settled world and investigate whether a primitive local species was once sentient—enough so to have built a lost civilization.However, arriving on site in the Delta Pavonis system, Caine discovers that the job he’s been given is anything but secret or safe. With assassins and saboteurs dogging his every step, it's clear that someone doesn't want his mission to succeed. In the end, it takes the broad-based insights of an intelligence analyst and a matching instinct for intrigue to ferret out the truth: that humanity is neither alone in the cosmos nor safe. Earth is revealed to be the lynchpin planet in an impending struggle for interstellar dominance, a struggle into which it is being irresistibly dragged. Discovering new dangers at every turn, Riordan must now convince the powers-that-be that the only way for humanity to survive as a free species is to face the perils directly—and to fight fire with fire.

    The crew of Moonbase Columbus make an amazing discovery on the far side of the Moon a massive alien structure is erecting itself, built up atom by atom by living machines, microscopically small, intelligent, and unstoppable, consuming everything they touch. The mysterious structure begins to expand and take shape, and its creators begin to multiply.Is this the first strike in an alien invasion from the stars? Or has human nanotechnology experimentation gone awry, triggering an unexpected infestation? As riots rage across a panicked Earth, scientists scramble to learn the truth before humanity is engulfed by the voracious machines.

    For three years it had been there, and still there were nothing but questions. What had lured the voyager from Sigma Dacron's to Earth? How did the creature plan to use its incredible power? And most important, why was it waiting...and for what?Then, in a blinding flash of insight, Skip Wayburn suddenly knew the answers... knew with dead certainty why the Sigman had come, who "he' was, and precisely what the Earthmen must do.But who would listen to the far-out ideas of a mere sigaroon? Skip didn't know. But someone had to listen—and fast.

    But as the Skins invade bucolic Thallspring, Z-B's strategy is about to go awry, all because of: Sgt. Lawrence Newton, a dreamer whose twenty years as a Skin have destroyed his hopes and desires; Denise Ebourn, a school teacher and resistance leader whose guerrilla tactics rival those of Che Guevara and George Washington and Simon Roderick, the director who serves Z-B with a dedication that not even he himself can understand. Grimly determined to steal, or protect, a mysterious treasure, the three players engage in a private war that will explode into unimaginable quests for personal grace...or galactic domination

    Ordered to destroy the comet, he instead discovers that it is actually the shell of a derelict space probe - a wreck with just enough power to emit a single electronic signal...2034: Then a reply is heard. Searching for the source of this signal that comes from outside the solar system, Nigel discovers the existence of a sentient ship. When the new vessel begins to communicate directly with him, the astronaut learns of the horrors that await humanity. For the ship was created by an alien race that has spent billions and billions of years searching for intelligent life...to annihilate it.In the Ocean of Night is a 1977 hard science fiction novel by Gregory Benford. It is the first novel in his Galactic Center Saga. It was nominated for the Nebula Award for Best Novel in 1977. It was first published as a novelette in the May/June 1972 edition of Worlds of If Science Fiction.

    Commander Colin Maclntyre, it began as a routine training flight over the Moon. For Dahak, a self-aware Imperial battleship, it began millennia ago when that powerful artificial intelligence underwent a mutiny in the face of the enemy. The mutiny was never resolved--Dahak was forced to maroon not just the mutineers but the entire crew on prehistoric Earth. Dahak has been helplessly waiting as the descendants of the loyal crew regressed while the mutineers maintained control of technology that kept them alive as the millennia passed. But now Dahak's sensors indicate that the enemy that devastated the Imperium so long ago has returned--and Earth is in their path. For the sake of the planet, Dahak must mobilize its defenses. And that it cannot do until the mutineers are put down. So Dahak has picked Colin Maclntyre to be its new captain. Now Maclntyre must mobilize humanity to destroy the mutineers once and for all--or Earth will become a cinder in the path of galactic conquest.

    Earth's dubious allies, the Darhel, have given the humans a number of highly-advanced technological devices, including a process for rejuvenating the aged, which has returned to service trained and proven soldiers who otherwise would be too old to fight. In the dark days after the initial Posleen attack, but before the primary invasion, the Chancellor of Germany faces a critical decision. Over the years, with military cutbacks, the store of experienced German military personnel had simply dwindled. After the destruction of Northern Virginia, he realized that it was necessary to tap the one group he had sworn never, ever, to recall: the few remaining survivors of the Waffen SS. Has he made a bargain with the devil, or is this a chance for the reviled SS at last to fight the good fight, and, perhaps, gain redemption? "Watch On the Rhine", is a new chapter, and a "side-story", in the best-selling Posleen War saga.

    Vannemar Morgan's dream of linking Earth with the stars requires a 24,000-mile-high space elevator. But first he must solve a million technical, political, and economic problems while allaying the wrath of God. Includes a new introduction by the author.

    The first sign of trouble is the apparent suicide of a passenger. When first officer Jason Kraft discovers that she was murdered, Kraft wants to know why. Before long, a desperate group of people tries to use the hyperspace craft for their evil purposes, and Kraft is the only person in their way. [A selection of the Science Fiction Book Club.]

    The story Budrys goes on to tell is a tale ripped from the pages of a supermarket tabloid. A starship crash lands in a New Jersey swamp, its passengers, human in appearance, scatter, each forced to find their own way in an alien world, living the rest of their lives among the human race. Like much of Budys' best work of the 1960s, Hard Landing expounds on the nature of identity, following its chief protagonist, Jack Mullica, through a series of adventures after his initial crash landing. Hard Landing is a welcome addition to Budrys' small but impressive collection of work. Hopefully Budrys, who has never been the most prolific of writers, will not go another fifteen years before releasing his next.

    It is growing, destroying the city as it does — and nothing seems able to stop it, not even the might of the US military. Somehow, the alien device is snatching people and — for unknown reasons — transporting them into worlds of mythology. Dr Lukacs is one of the victims. Granted, he's an expert on mythology. But myths are not something he'd thought to encounter personally. Or wanted to! Sure, he has a couple of tough paratroopers along with him, as well as a blonde Amazon biologist and a very capable maintenance mechanic. Unfortunately, modern weapons don't work, and the Greek gods are out to kill the heroes.Well, yes, they've got Medea and Arachne and the Sphinx on their side (both Sphinxes, actually — the Greek version as well as the Egyptian). And at least some of the Egyptian gods seem friendly.But that can be a very mixed blessing, to say the least. Oh, and whatever you do—don't mention dwarf-tossing.

    Houston's Pulsystems has sent an expedition to the lost Martian colony of Frontera to search for survivors. 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. Reese is equally desperate to use it for his own very personal agenda. But none of them have reckoned with Kane, tortured veteran of the corporate wars, whose hallucinatory voices are urging him to complete an ancient cycle of heroism and alter the destiny of the human race.

    The Terran explorers have made an uneasy truce with the Sholen, their first extraterrestrial contact: so long as they don’t disturb the Ilmataran habitat, they’re free to conduct their missions in peace.But when Henri Kerlerec, media personality and reckless adventurer, ends up sliced open by curious Ilmatarans, tensions between Terran and Sholen erupt, leading to a diplomatic disaster that threatens to escalate to war.Against the backdrop of deep-sea guerrilla conflict, a new age of human exploration begins as alien cultures collide. Both sides seek the aid of the newly enlightened Ilmatarans. But what this struggle means for the natives—and the future of human exploration—is anything but certain, in A Darkling Sea by James Cambias.