The pulse hits without warning. In one harrowingly destructive instant, a mysterious seismic pulse in the Scottish Highlands rips away all semblance of global security. When peace is shattered, fear takes over. The stakes rise without mercy. As the pulse's chaos spreads across the world, it becomes painfully clear that Piper McCarthy - a child born like no other - might hold humanity's only hope of averting total disaster.

Jon Ryan had lived long enough to know better. But with age does not automatically come wisdom. He has saved mankind many times. He even resurrected Earth and all its inhabitants from never-having-existed. But he's still haunted, and haunted people do crazy things.

All eyes fall on the closing stages of a colony-defining isolation test within Terradox’s least hospitable zone—the man-made hellscape of Little Venus, where six astronauts-in-training have survived 51 weeks surrounded by an almost impossibly hostile atmosphere. But while the astronauts of tomorrow count down their final few days until freedom, the gravest threat of all might already be on the wrong side of their Isolation Kompound’s impenetrable walls....

Continuing the legacy of decades gone by, these fast-paced standalone stories offer wondrous settings, philosophical sci-fi questions, and twists that pack a punch.

Not Alone: First Encounter is a prequel to the globally acclaimed Not Alone series, set several years before two worlds collide under the weight of the grandest conspiracy of all time. For the first time ever, First Encounter lifts the curtain on a deadly series of events surrounding the initial meeting between the ruthless Richard Walker - untouchable head of the controversial Interspace Defense Agency - and a young truth-seeker from Birchwood, Colorado....

Charlie Travers figures his life can’t get much worse. He lives over a pizza restaurant, he’s lost his girlfriend, and has no prospects for a career. Then, he’s abducted by an alien robot and taken across the galaxy. When he wakes up, he finds himself stranded thousands of light-years away, and about to be killed by space pirates.

Nick Morrison always wanted to be an astronaut. When a start-up company recruits him to build a lunar launch system at the moon’s south pole, Nick gladly leaves behind his troubled life on Earth—but Nick doesn’t know that the company is in financial and legal trouble. Deprived of support from Earth, the team on the moon must figure out how to survive on their own. Worse yet, there’s another base at the lunar south pole, run by a ruthless contractor who has big plans for the moon...and for Earth.

After a rough break up, Wyatt moves to New York City, eager to prove himself while working on Wall Street. When he’s asked to visit the father of his ex-girlfriend, a billionaire tycoon, his fate is sealed. The revolutionary company, Nu-En, launches a radical innovation, an energy that will allow every person on the planet access to power. Only it doesn’t perform as anticipated. Harnessing the ocean has consequences, and highly dangerous creatures emerge from the depths. Soon, the Earth is fracturing, and the world will never be the same.

Dr. Tyson Klein is a quantum physicist who has dedicated his entire life to his research. At CERN, he analyses data generated by the Large Hadron Collider, the world's biggest and most powerful particle accelerator. Now, Ty believes he's found a pattern in its output. It looks like an organised data stream, being broadcast over what he calls a quantum radio. Could it be a signal from another universe? A message sent from the future? Or something else entirely?

Drake, a retired police detective, receives a call in the dead of night from an alien-obsessed podcaster. He hastily departs for Montana the following morning. The phenomenon continues all over the globe. What are they? What do they mean? Britt is on assignment for a digital magazine when she encounters one of the Glass in a tragic boating accident, leaving her no choice but to follow the lead. Panic ensues as mysterious creatures are sighted.

Cole Riker is a Slip Runner. A contractor tasked with finding alien salvage in exchange for credits. For an ex-smuggler like Cole, there’s a catch: Don’t break the terms of parole. That means doing things by the book. Find salvage, turn it in, get paid. But everything changes when a retrieval mission lands him in a previously unknown sector. There, he finds the material he’s been sent to recover, along with something more. A brand-new form of ancient alien life.

Captain Caleb Card and his crew are on a mission to investigate a transmission believed to be from the lost ship. Ambushed upon arrival, they immediately fear the worst. But the beacon isn’t only active, it’s on the move, and where it leads will change everything they thought they knew about the universe. Cast into a distant galaxy brimming with unknown dangers, they’ll need to adapt quickly if they want to survive long enough to help the missing colonists.

Go to war or go to jail. For small-time street hustler Cam Alvarez, the choice is simple.... He has no family, no friends, no place in the world...nothing to lose. When his latest con results in the death of a cartel hit man, Cam opts to join the Marines and leave Earth to fight a vicious alien enemy. Drafted into the Marine Drop-Troopers, Cam discovers there’s one thing he’s even better at than running street-con games, and that’s killing the enemy.

Michael Freeman is a disabled veteran who had just been fired from his mind-numbing cubicle job, which allowed his opportunistic girlfriend to dump him. Now, he only wants to spend some time at his grandfather's mountain cabin so he can unwind, away from the drudgery of daily life and with a cold beer in his hands. Standing in his way is an ancient spaceship with an emotional AI, nanites that have invaded his body, an international crime syndicate, a suicidal FBI agent on a vigilante mission, terrorists . . . and that's just the beginning.

Commander David Bryce is scheduled to lead a routine re-supply run for the Orbital Development Group (ORB) to the fledgling colony on Mars. Without warning, he’s taken away by government agents and told the mission parameters have changed. They’ve discovered something. And it’s drifting closer to Earth. Atlas Donovan tirelessly hunts for an artifact, and tracks the piece to Lake Como, Italy. After the recent news from ORB, Atlas is more drawn to the trail than ever.

Rapid colonization of the moon is pushing both national space agencies and powerful corporations to negotiate a New Lunar Accord in an effort to prevent escalating conflicts over valuable resources and territory. But hope that this treaty will bring stability to the nascent lunar civilization is suddenly dashed when a high-energy solar storm causes a cascade of destruction to the vast satellite constellations that orbit Earth. Now it’s only a matter of weeks before the ever-increasing debris cloud makes travel back to the home planet impossible.

Not Alone: First Encounter is a prequel to the globally acclaimed Not Alone series, set several years before two worlds collide under the weight of the grandest conspiracy of all time. For the first time ever, First Encounter lifts the curtain on a deadly series of events surrounding the initial meeting between the ruthless Richard Walker - untouchable head of the controversial Interspace Defense Agency - and a young truth-seeker from Birchwood, Colorado....

The pulse hits without warning. In one harrowingly destructive instant, a mysterious seismic pulse in the Scottish Highlands rips away all semblance of global security. When peace is shattered, fear takes over. The stakes rise without mercy. As the pulse's chaos spreads across the world, it becomes painfully clear that Piper McCarthy - a child born like no other - might hold humanity's only hope of averting total disaster.

It is 2056. Mathematics professor Elisabeth Gabai is fascinated by multi-dimensional forms that have no equivalent in reality. Then, her boss sends her to the site of an artifact that might have come straight from her theories—or from the technology of an advanced civilization. Twenty-eight years earlier, physicist Max Webber is hell-bent on improving Einstein’s theories of relativity. His latest concept seems flawless, except it predicts the end of humanity. The extinction of Earth can only be prevented if Max can locate a multi-dimensional object.

A mysterious object threatens to destroy our solar system. The survival of humankind is at risk, but nobody takes the warning of young astrophysicist Maribel Pedreira seriously. At the same time, an exiled crew of outcasts mines for rare minerals on a lone asteroid. When other scientists finally acknowledge Pedreira's alarming discovery, it becomes clear that these outcasts are the only ones who may be able to save our world, knowing that the Hole hurtles inexorably toward the sun.

Daniel Rice is a government science investigator whose specialty is solving seemingly intractable problems through scientific inquiry. But Daniel's intellectual strength is sorely tested by the bizarre realities he finds in the quantum world. Extra dimensions of space trap the unwary, probability replaces cause and effect, and time isn't what anyone imagined. The other side of the mirror is a place full of dangers, but it's also somewhere a dedicated scientist can uncover secrets that connect humans with something greater.

Michael Freeman is a disabled veteran who had just been fired from his mind-numbing cubicle job, which allowed his opportunistic girlfriend to dump him. Now, he only wants to spend some time at his grandfather's mountain cabin so he can unwind, away from the drudgery of daily life and with a cold beer in his hands. Standing in his way is an ancient spaceship with an emotional AI, nanites that have invaded his body, an international crime syndicate, a suicidal FBI agent on a vigilante mission, terrorists . . . and that's just the beginning.

When Jack Harrison climbed down the short ladder from the airlock and stepped onto the debris covered soil, the ground crackled with the sound of dried leaves and twigs.

Palia’s emotions are in turmoil. After watching her son succumb to Empyrean fire, she barely escapes the same fate. Guilt-ridden and alone, she will not stop until his killer is brought to justice. The Protectorate forbids Ferrash to have emotions. That suits him, since he cannot avoid the people who control the Empyrean. Making this sacrifice prevents them from hijacking his feelings and using them as a weapon against him. When Ferrash spots Palia’s ship venting atmosphere, he is forced to save her.

Sergeant Gastovsky—Gas to everyone but his superior officers—never wanted to be a soldier. Far from it. But when a con goes wrong and he needs a place to lay low for a while, he finds himself wearing the power armor of the augmented infantry. After three years on a six-year contract, Gas has found his groove running low-level cons and various illegal activities that make him good money on the side. He’s the guy who can get you what you need. But he’s always had his eye out for a big score—the one that might set him up for life after the military.

The world holds its breath as the colossal asteroid 2011 AG5 hurtles towards the Earth. As humanity is faced with extinction, archaeologist Sarah Morgan is in a race against time to uncover a secret that has been buried for millennia: that an advanced ancestor once populated the Earth. As Sarah travels across the continents in search of the truth, she discovers there are those that will kill to protect this most ancient of secrets....

Deep within the Congo, a team of scientists prepares for the greatest event in the history of humanity, making first contact with an intelligent extraterrestrial species. Only the jungle is no place for doubts. Could first contact be our last?

The shady crew of the White Raven run freight and salvage at the fringes of our solar system. They discover the wreck of a centuries-old exploration vessel floating light years away from its intended destination and revive its sole occupant, who wakes with news of First Alien Contact. When the crew break it to her that humanity has alien allies already, she reveals that these are very different extra-terrestrials and the gifts they bestowed on her could kill all humanity, or take it out to the most distant stars.

"Rescue Party" was first published in the May 1946 issue of Astounding Science-Fiction.

Sir Arthur C. Clarke (1917-2008) is regarded as one of the most-influential science fiction writers of all time. He was named a Grand Master by the Science Fiction and Fantasy Writers of America, and was inducted into the Science Fiction and Fantasy Hall of Fame.

When Kyle Wimberly, the hands-on president of Full Cycle Solar, Inc., investigates a unit failure, he finds an alien shuttle has crashed into it. The shuttle's captain is grievously injured, his crew dead. Then, to Kyle's surprise, the captain asks for help, speaking perfect English. Kyle and colleague Alexandra Reyes carry the captain to the shuttle's medical bay for treatment by its auto-doc. This simple act of compassion launches the two down a path that will change their lives and the world forever.