Revelation Space is a 2000 science fiction space opera novel by Welsh author Alastair Reynolds. It was the first novel set in the Revelation Space universe, although the then-unnamed universe had already been established by several published short stories.
The novel reflects Reynolds' professional background: he has a PhD in Astronomy and worked for many years for the European Space Agency.
Revelation Space was short listed for the 2000 BSFA and Arthur C. Clarke Awards.
Source: Wikipedia, "Revelation Space", available under the CC-BY-SA License.