Dennis E Taylor

"Being a sentient spaceship really should be more fun. But after spreading out through space for almost a century, Bob and his clones just can't stay out of trouble. They've created enough colonies so humanity shouldn't go extinct. But political squabbles have a bad habit of dying hard, and the Brazilian probes are still trying to take out the competition. And the Bobs have picked a fight with an older, more powerful species with a large appetite...

"Bob Johansson didn't believe in an afterlife, so waking up after being killed in a car accident was a shock. To add to the surprise, he is now a sentient computer and the controlling intelligence for a Von Neumann probe. Bob and his copies have been spreading out from the Earth for 40 years now, looking for habitable planets. But that's the only part of the plan that's still in one piece. A system-wide war has killed off 99.9% of the human race,...

When the Yellowstone supervolcano erupts, it's up to six university students and their experimental physics project to prevent the end of civilization. When an experiment to study quantum uncertainty goes spectacularly wrong, physics student Richard and his friends find that they have accidentally created an inter-dimensional portal. They connect to an alternate Earth with identical geology, but where humans never evolved. They go panning for gold...