I know of six books of his, the last of which appeared a long time ago. Since then he seems to have disappeared. I guess maybe either he or his publishers decided he wouldn't ever be a betseller. Whatever the reason, it's a shame. His books were good solid science fiction.
Hey, I just learned he has a new book out. See Amazon.
This was fun. Aliens reconstruct humans from genetic information transmitted from Earth before we kill ourselves, and construct a dual society with these humans. This is one of the more drastic things I've seen an author attempt, and I think he handles it really quite well.
The humans eventually go back and visit Earth.
The Genesis Quest
Astronomical adventure in a far-future Islamic interstellar empire.
Crescent in the Sky
A Gathering of Stars
The Jupiter Theft
The aliens come and steal Jupiter, or a large part of it.