Energynet: 2 books

Darren Stewart, a NASA director, and his wife, Tracey, a former presidential press secretary, have been missing for three years along with their fellow time travelers, ever since they departed in a refurbished time ship and traveled to a point in time nearly a thousand years ago to explore the Anasazi...

The Phobos Expedition is about a NASA mission to the tiny Martian moon, Phobos. The objective is to scan the surface of Phobos in preparation for future landings and determine whether a decades-old urban legend about Phobos being an artificial satellite put in place by an ancient alien civilization...