Their historic mission to Mars made Julia and Victor the most famous astronauts of all time. Now, decades later, they are ordered by the Consortium to Pluto, where they will rendezvous with another starship led by the brilliant, arrogant Captain Shanna Axelrod. Here, on the frozen ammonia shore of Pluto's methane sea, Shanna has discovered intelligent creatures thriving in the -300° degree temperatures.

Prescient and scientifically accurate, Heart of the Comet is known as one of the great hard SF novels of the 1980s. First published in 1986, it tells the story of an ambitious manned mission to visit Halley's Comet, alter its orbit, and mine it for resources. But all too soon, native cells - that might once have brought life to Earth - begin colonizing the colonists. As factions battle over the comet's future - and that of Earth - only love, courage, and ingenuity can avert disaster and spark a new human destiny.

Here are tales of star-faring adventure, peril, and drama. Here are journeys into the mind-bending landscapes of virtual worlds and alternate realities. Here you'll also find stories of humanity's astounding future on Earth, on Mars, and in the solar system beyond - stories that always get the science right. And Bova's gathering of deeply realized, totally human characters are the heroic, brave, tricky, sometimes dastardly engineers, astronauts, corporate magnates, politicians, and scientists who will make these futures possible.

Bridging Infinity puts humanity at the heart of these vast undertakings - as builder, as engineer, as adventurer - reimagining and rebuilding the world, the solar system, and even the entire universe. This continuation of the award-winning Infinity Project anthology series features bold new stories from Stephen Baxter, Elizabeth Bear, Gregory Benford, Zachary Brown, Pat Cadigan, Kameron Hurley, Scott Lynch, Vonda N. McIntyre, Hannu Rajaniemi, Allan Steele, and many more.

Kavanagh begins his life patrolling the Wall. If he's lucky, if nothing goes wrong, he only has two years of this, 729 more nights. The best thing that can happen is that he survives and gets off the Wall and never has to spend another day of his life anywhere near it. He longs for this to be over; longs to be somewhere else. He will soon find out what Defenders do and who the Others are. Along with the rest of his squad, he will endure cold and fear day after day, night after night. 

What would happen if Odysseus met Captain Ahab in the Fortieth Century? Only Captain Ahab is a beautiful woman named Steel who owns her own starship, and Odysseus is an unemployed actor named Mohandas who's stuck on the backside of a backwater moon because he won't pay his taxes. Everybody almost everybody lives forever, and there's a telepathic Internet that allows the entire population of the galaxy to communicate at will and even experience the world from another person's perspective.

An alien invasion left part of Earth's population deteriorating from alien viruses. The drug called Omnifix replaces the victims' DNA with micro technology, saving their lives at the cost of their humanity. And now, the aliens have returned...

Six years after the first manned Martian expedition, a second has been announced, this one motivated purely by its profitable potential. Half-Navajo geologist Jamie Waterman, a veteran of the first mission, feels his conflicted soul beckoning him back to the eerie, unforgiving planet. As commander of the new exploratory team, he will have to contend with a bitter and destructive rivalry, a disturbing new emotional attraction, and deadly, incomprehensible "accidents" that appear to be sabotage.

We were fighting on the wrong side of a war we couldn't win. And that was the good news. The Ruhar hit us on Columbus Day. There we were, innocently drifting along the cosmos on our little blue marble, like the native Americans in 1492. Over the horizon come ships of a technologically advanced, aggressive culture, and BAM! There go the good old days, when humans only got killed by each other. So, Columbus Day. It fits. When the morning sky twinkled again, this time with Kristang starships jumping in to hammer the Ruhar, we thought we were saved.

While on an archaeological dig, 7-year-old Tia falls mysteriously ill. Her sickness may have been caused by the EsKays, a race whose artifacts are scattered throughout the galaxy. The young shellperson goes in search of the EsKays, whose fate remains an enigma, to try to find answers. This heartwarming tale is narrated by television and stage actress Constance Towers.

For centuries, the red planet has enticed the people of Earth. Now an international group of scientists has colonized Mars. Leaving Earth forever, these 100 people have traveled nine months to reach their new home. This is the remarkable story of the world they create - and the hidden power struggles of those who want to control it.

The long-awaited new novel by the award-winning, best-selling author of Startide Rising and The Uplift War- an epic novel set 50 years from tomorrow, a carefully-reasoned, scientifically faithful tale of the fate of our world.

The urge to explore and discover is a natural and universal one, and the edge of the unknown is expanded with each passing year as scientific advancements inch us closer and closer to the outer reaches of our solar system and the galaxies beyond them. Generations of writers have explored these new frontiers and the endless possibilities they present in great detail. The Final Frontier delivers stories from across this literary spectrum, a reminder that the universe is far large and brimming with possibilities than we could ever imagine, as hard as we may try.

The Western Front, 1916. Private Percy Blakeney wakes up. He is lying on fresh spring grass. He can hear birdsong, and the wind in the leaves in the trees. Where have the mud, blood, and blasted landscape of No Man's Land gone? Madison, Wisconsin, 2015. Cop Monica Jansson is exploring the burned-out home of a reclusive - some said mad, others dangerous - scientist when she finds a curious gadget: a box containing some wiring, a three-way switch and a potato. It is the prototype of a life-changing invention....

The astounding new novel from the master of science fiction. What would happen if the world were ending? When a catastrophic event renders the Earth a ticking time bomb, it triggers a feverish race against the inevitable. An ambitious plan is devised to ensure the survival of humanity far beyond our atmosphere. But unforeseen dangers threaten the intrepid pioneers, until only a handful of survivors remain....