Debatable Space

Blurb

Debatable Space is a 2008 science fiction novel by novelist and screenwriter Philip Palmer.
The book alternates between telling the story of the main character, Lena Smith, in the form of a diary and a first-person narrative of events which take place roughly 1000 years from the present day. Each section of the POV narrative bears the name of the character it follows.
The book is billed as a space opera.