Existence (2014) in which he speculates on the existence of life elsewhere in the universe. He recently stopped by Google to talk about the book - here is a summary:
Bestselling, award-winning futurist David Brin returns to globe-spanning, high concept SF with Existence.Brin is the author of several classic sci-fi novels, including Earth (1991), The Postman (1997), and Otherness (1994).
Gerald Livingston is an orbital garbage collector. For a hundred years, people have been abandoning things in space, and someone has to clean it up. But there’s something spinning a little bit higher than he expects, something that isn’t on the decades’ old orbital maps. An hour after he grabs it and brings it in, rumors fill Earth’s infomesh about an “alien artifact.”
Thrown into the maelstrom of worldwide shared experience, the Artifact is a game-changer. A message in a bottle; an alien capsule that wants to communicate. The world reacts as humans always do: with fear and hope and selfishness and love and violence. And insatiable curiosity.
Published on Apr 1, 2014
David Brin is a scientist, best-selling author and tech-futurist. His novels include Earth, The Postman (filmed in 1997) and Hugo Award winners Startide Rising and The Uplift War. A leading commentator and speaker on modern trends, his nonfiction book The Transparent Society won the Freedom of Speech Award of the American Library Association.
Brin's newest novel Existence explores the ultimate question: billions of planets are ripe for life. So where is Everybody? David's main thread: how will we shape the days and years ahead -- and how will tomorrow shape us?
David's books are available on Google Play: http://goo.gl/iiv9Qk