Between Heaven and Hell (Jasper Stone Mysteries Book 4)

When Jasper Stone uses the West Foundation to research Hades Syndrome (the condition that killed his first wife), a simple medical research project blows up into a murder mystery involving thousands of victims. Jasper's trail takes him and his wife to Paradise Station, rural Wyoming, and finally the state of Puerto Rico. Set in 2185.
Contains a zero gravity sex scene you'll laugh over.