Nancy Kress

Probability Moon is a 2000 science fiction novel by Nancy Kress. The novel concerns a xenological expedition to the planet World, where aliens live who have developed a strange form of telepathy or collective unconscious, "shared reality", which causes piercing "head-pain" whenever "Worlders" attempt to hold strongly …

Probability Sun is a 2001 science fiction novel by Nancy Kress, a sequel to her 2000 publication Probability Moon. It was followed in 2002 by Probability Space, which won the John W. Campbell Memorial Award. The novel concerns a military expedition to the planet World, where aliens live who have developed a strange …