Ex-astronaut turned physicist Keith Stoner knows that the signals he's picking up at his space station are anything but random. The fiery object heading toward Earth is an alien spacecraft. Yet the world may never know for Ketih is trapped in an iron cordon of secrecy: his discovery had shattered the world power balance, setting off a brutal struggle for supremacy that raged within the sacred halls of the Vatican to the corridors of the Kremlin and...

Corporate tycoon Martin Humphries offers a ten-billion-dollar prize to anyone who can land on Venus and retrieve the remains of his eldest son, who died trying to land on the planet years earlier.

On Mars a conflict breaks out between two factions of an expedition, led by half-Navajo astronaut Jamie Waterman. One side wants to exploit the planet for commerce, the other to keep it ecologically pure. By the author of Mars.

"Award-winning author Ben Bova brings us New Earth, his latest tale of science fiction. The entire world is thrilled by the discovery of a new Earthlike planet. Advance imaging shows that the planet has oceans of liquid water and a breathable oxygen-rich atmosphere. Eager to gain more information, a human exploration team is soon dispatched to explore the planet, now nicknamed New Earth. All of the explorers understand that they are essentially on...

America has ceded the heavens to the tyrants-and the renegades. The US has abandoned its quest for the stars, and an old enemy has moved in to fill the void. The potential wealth of the universe is now in malevolent hands. Rebel billionaire Dan Randolph-possessor of the largest privately owned company in space-intends to weaken the stranglehold the new despotic masters of the solar system have on the lucrative ore industry. But when the mineral-rich...

Orion will battle the gods themselves to see that Arthur fulfills his destiny. But can even he save Arthur from the tragedy that awaits him?

Award-winning writer Ben Bova returns with another tense political thriller starring Jake Ross, science advisor to Senator Frank Tomlinson, as they continue their complex power maneuvers they began in Power Play and Power Surge. Dr. Jake Ross came to Washington to try to make a difference, but he's learned the only way to get something done in Washington, assuming your ideals survive the corrosive atmosphere, is to gather power. Ross has gathered...

Dr. Jake Ross, a university astronomer, wants nothing more than to teach a few classes each semester and continue his research. Instead, he finds himself aggressively recruited to be the science advisor to Frank Tomlinson, an ambitious politician with his eye on the US Senate. Tomlinson is in need of an edge that will allow him to defeat his opponent at the polls, and Dr. Ross can contribute just that: MHD. MHD, or magnetohydrodynamics, is a new innovation...

"Fourteen startling visions of yesterday, today, and tomorrow from the six-time winner of the Hugo Award Frontiers can be found in all directions. Frontiers of time and space, as well as frontiers of courage, devotion, love, hate, and the outer limits of the human spirit. This outstanding collection of stories by one of science fiction's premier talents spans the length and breadth of history and the universe, while exploring thought-provoking new...

SFarside, the side of the Moon that never faces Earth, is the ideal location for an astronomical observatory. It is also the setting for a tangled web of politics, personal ambition, love, jealousy, and murder. Telescopes on Earth have detected an Earth-sized planet circling a star some thirty light-years away. Now the race is on to get pictures of that distant world, photographs and spectra that will show whether or not the planet is truly like...