Space Science

Once dismissed as a mathematical curiosity, black holes are so strange they almost defy belief. Since their existence was confirmed, research into the nature of black holes has opened up new vistas in physics. In this audiobook, we examine some of the most fascinating discoveries about black hole formation and behavior, the new and evolving research in gravitational wave astronomy, theoretical possibilities such as wormholes, and much more.

The war against the AI was won but a new threat is rising. Hank Spears is content with his life as a scrapper until he unearths an artificial intelligence who warns him of a grave threat to all life in the universe. Since AI has long been outlawed and anyone caught harboring one is imprisoned or executed, the two must go on the run, fleeing into the far reaches of space. They must avoid capture, all for the sake of those who would imprison them. Looking for help from old friends to fight new enemies, Hank must find a way to save himself so that he can save the universe.

Seven years after the indomitable Doug Stavenger has realized his cherished dream of establishing a colony on the inhospitable lunar surface, Moonbase is a thriving community, a marvel of scientific achievement created and supported by nanotechnology: virus-sized machines that can build, cure, and destroy. But nanotechnology has been declared illegal by the home planet’s leaders, and a powerful despot is determined to lay claim to Stavenger’s peaceful city - or obliterate it, if necessary.

Humanity's thousand-year-old interstellar empire has been rotting from the inside for over a century, thanks to venal, corrupt, and power-hungry sovereigns from a dynasty many consider illegitimate. The latest in that lineage, an increasingly psychotic empress, is pushing her realm toward collapse as admirals and generals rebel against her rule. That rebellion quickly drags the once mighty Imperial Fleet into a devastating fratricidal conflict between factions.

In Saturn's Children, Freya is an obsolete android concubine in a society where humans haven't existed for hundreds of years. A rigid caste system keeps the Aristos, a vindictive group of humanoids, well in control of the lower, slave-chipped classes. So when Freya offends one particularly nasty Aristo, she's forced to take a dangerous courier job off-planet.

The age of the Dark Imperium has begun, and the human race is poised on the brink of ruin. In their darkest hour, the Emperor’s servants have achieved the impossible: the resurrection of the Primarch Roboute Guilliman. Now Lord Commander of the Imperium of Man, Guilliman marshals his forces in a desperate effort to drive back the predations of Chaos: the Indomitus Crusade. Dispatched ahead of the bulk of Guilliman’s war fleets, Chaplain Helios of the Ultramarines is entrusted by the risen primarch with a mission of vital importance.

Ambassador Mahit Dzmare arrives in the center of the multi-system Teixcalaanli Empire only to discover that her predecessor, the previous ambassador from their small but fiercely independent mining station, has died. But no one will admit that his death wasn't an accident - or that Mahit might be next to die, during a time of political instability in the highest echelons of the imperial court. Now, Mahit must discover who is behind the murder, rescue herself, and save her station from Teixcalaan's unceasing expansion.

As Guilliman, Regent of Terra, heads off to lead the Indomitus Crusade, he leaves behind a world still in turmoil, beset by cult activity. Stripped of its huge armies for the galactic offensive, recovery is precarious. The Custodians do what they can while keeping the Palace secure, and the Sisters of Silence rebuild their citadel on Luna. When the warship Phalanx returns, it seems that stability will at last be assured. However, as reconquest forces push out further into the slums, they come across signs that another mysterious foe is active.

Dozens of astronauts travel to space every year, but what makes these amazing trips possible? Max Axiom has the answers. Join Max as he explores the science and engineering behind space travel.

It was not easy being a woman of ambition in early 20th-century England, much less one who wished to be a scientist. Cecilia Payne-Gaposchkin overcame prodigious obstacles to become a woman of many firsts: the first to receive a PhD in astronomy from Radcliffe College, the first promoted to full professor at Harvard, the first to head a department there. And, in what has been called "the most brilliant PhD thesis ever written in astronomy", she was the first to describe what stars are made of.

Nathaniel Garro and the Knights-Errant offer a tantalising answer to a question many fans of Warhammer 40,000 and the Horus Heresy have asked themselves - did every member of the traitor Legions turn against the Imperium? This collection of stories follows some few Astartes who turned on their Legion rather than their emperor or else became blackshields - renegades in that grey space somewhere between loyalty and betrayal.

The Inhibitors were designed to eliminate any life-form reaching a certain level of intelligence - and they've targeted humanity. War veteran Clavain and a ragtag group of refugees have fled into hiding. Their leadership is faltering, and their situation is growing more desperate. But their little colony has just received an unexpected visitor: an avenging angel with the power to lead mankind to safety---or draw down its darkest enemy.

When I leave the colony for a day at the lively and exciting Frizian Outpost, I never expect my life to change forever. Again. I'm a former human slave, freed by the Zyrnx Warriors and given sanctuary on the colony as I await transport back to Earth. But when I see a wild and injured Madixx male, caged and tormented by his captors, all it takes is a single glance for me to know I won't rest until I free him. Should I believe this huge, wild man is capable of love, or should I ignore my heart and take what may be my last chance to return to my world?

In the 25th century, humans have conquered space. The advent of faster-than-light travel has opened up hundreds of habitable planets for colonization, and humans have exploited the virtually limitless space and resources for hundreds of years with impunity. So complacent have they become with the overabundance that armed conflict is a thing of the past, and their machines of war are obsolete and decrepit. What would happen if they were suddenly threatened by a terrifying new enemy?

Two centuries ago, the Imperium of Man and the upstart Tau Empire fought to a standstill in the Damocles Gulf. Now, as the 41st millennium draws to a close, the tau have returned. As the world of Agrellan falls under attack, the White Scars and Raven Guard rush to its defence, but with the skilled Commander Shadowsun leading the alien forces, the Space Marines and their allies are hard pressed. Kor'sarro Khan, Huntmaster of the White Scars, swears that he will win the day in the most direct way possible – by taking Shadowsun's head.

The Veklocks require the Pyreans to explore the extent of the Colony's usurpation of domes. The Colony is composed of two insectoid species, the grays and the reds. They're aggressive three- and five-meter long insectoids with venomous pincers that live for the expansion of their race. The Pyreans already lost one member of their team on their first exploration and are hesitant to meet the Colony again, unless they're better prepared.

After one great battle, the Architects disappeared. Yet humanity’s fragile peace is brief. For, 40 years later, the galaxy’s greatest alien enemy has returned. This time, the artefacts that preserved entire worlds from destruction are ineffective. And no planet is safe. The Human Colony worlds are in turmoil as they face extinction. Some believe alliances with other species can save them. Others insist humanity must fight alone. But no one has the firepower or technology to ensure victory, as the Architects loom ever closer.

When war broke out on the planet Harmony, the Oversoul of that colonized world selected the family of Wetchik to carry it back to long-lost Earth. Now the tribe is ready at last to take a ship to the stars. But from the beginning there has been bitter dispute between Wetchik's sons, Nafai and Elemak. On board the starship Basilica, the children of the tribe will become pawns in the struggle for control of reclaimed Earth.

Where Paul of Dune picked up the saga directly after the events of Dune, The Winds of Dune begins after the events of Dune Messiah. Paul has walked off into the sand, blind, and is presumed dead. Jessica and Gurney are on Caladan; Alia is trying to hold the Imperial government together with Duncan; Mohiam is dead at the hands of Stilgar; Irulan is imprisoned. Paul's former friend, Bronso of Ix, now seems to be leading opposition to the House of Atreides.

For thousands of years, the Chiss Ascendancy has been an island of calm, a center of power, and a beacon of integrity. It is led by the Nine Ruling Families, whose leadership stands as a bulwark of stability against the Chaos of the Unknown Regions. But that stability has been eroded by a cunning foe who winnows away trust and loyalty in equal measure. Bonds of fidelity have given way to lines of division among the families. Despite the efforts of the Expansionary Defense Fleet, the Ascendancy slips closer and closer to civil war.