As on a Darkling Plain – Ben Bova

Mysterious Big Dumb Objects have been found on Titan. It appears that they have been placed there by the “Others”, who will return to threaten mankind. Although somewhat disjointed and lacking focus, I nevertheless enjoyed this story of mankind under an unknown threat. The novel is vaguely connected with the Orion series.

Ring – Stephen Baxter

This is probably the most important novel in the “early Baxter” books of the Xeelee sequence. Michael Poole has opened the universe to mankind with his wormholes. We are introduced to Lieserl, humanity’s sentient probe inside our sun. GUTships ride to the very edge of space and time. One of them carries, ark-like, the seed of humanity. Thousands of subjective years later, it arrives at the Ring, a classic BDO (Big Dumb Object) constructed as an escape hatch from the impending destruction of our universe. Big stuff, and Baxter makes it look easy. The message of hope and the importance of Life expressed here are, I think, Baxter’s greatest hallmarks. A fascinating novel indeed.

Consider Phlebas – Iain M. Banks

Banks is a best selling author of both Science Fiction and regular fiction. His Sci-Fi universe is known as “The Culture”, referring to the main civilization. Being systematic, I started at the beginning with the very first book of this celebrated series. I was sorely disappointed. Although there are space pirates, BDOs (Big Dumb Objects), interstellar intrigue, great characters and some solid action scenes, I failed to grasp the point of the story. For me, it was just plain dull. Your results may vary. The cover is gorgeous though.

Ringworld and The Ringworld Engineers – Larry Niven

Arguably Niven’s best solo novels, as well as the ultimate BDO (Big Dumb Object) story. Great adventure in an incredible setting with trademark Niven “quirky characters”. They’re not perfect but the sense of wonder created is second to none.

Interestingly, the premise of The Ringworld Engineers, that the Ringworld is unstable, was figured out by physicists after the first novel was published. At the 1971 World Science Fiction Convention, MIT students were chanting “The Ringword is unstable!” Hence why our heroes need to fix the problem.