Island Worlds Series by Eric Kotani, John Maddox Roberts

Soviet scientists discover the secret of a mysterious explosion that leveled a remote section of Siberia in 1889 and now intend to use their discovery to destroy the United States by identical, seemingly natural causes.

THE ASTEROID BELT WANTS YOU!It is the 21st century, and life on Planet Earth is not what it used to be, as the warnings of Left and Right have proved all too accurate. Teh rich have grown richer, the poor poorer, and raw materials ever scarcer and more expensive -- perhaps because a world-spanning socialistic bureaucracy has made it impossible for private enterprise to function, perhaps because the greedy capitalists have ridden rough-shod over the rest of us... moreTHE ASTEROID BELT WANTS YOU!It is the 21st century, and life on Planet Earth is not what it used to be, as the warnings of Left and Right have proved all too accurate. Teh rich have grown richer, the poor poorer, and raw materials ever scarcer and more expensive -- perhaps because a world-spanning socialistic bureaucracy has made it impossible for private enterprise to function, perhaps because the greedy capitalists have ridden rough-shod over the rest of us. Whatever the reason, the way to be free and happy is to get off Earth.Space is where it's all happening, especially in the asteroid belt. But there are those on both sides who say the Solar System is too small to be part slave and part free. The war of independence is about to begin... less

On the Saturnian moon Rhea, Derek Kuroda unearths two enigmatic objects of immense power. He joins forces with a genius inventor hoping to use the objects for space exploration, but others are intent on using the artifacts for more sinister purposes.