* "Earthcore" (2005)
* "Echoes of Earth" (2006)
* "Shadows of Earth" (2007)
* "The Quantum Garden" (2010)
* "The Darkness Between the Stars" (2012)
* "The Collapsing Empire" (2017)
* "The Fractured World" (2018)
* "The Heart of the Machine" (2019)
Non-Fiction:
* "In the Shadow of the Moons: The Untold Story of the Men Who Flew the X-15" (2010)
* "Abandoned in Place: Preserving America's Space History (2012)"
* "We Have Capture: Tom Kelly and the Spy Plane That History Almost Forgot" (2014)