Book cover for Pluto by Ben Bova and Les Johnson
2025 Released
288 Pages
5-6 Hours
Audiobook Unavailable
Paperback Unavailable
Tor BooksISBN 9781250296665

Hugo Award winner Ben Bova and Les Johnson complete Bova's Outer Planets series (Uranus, Neptune, and Pluto), a Grand Tour of the human settled solar system, with a final encounter on Pluto.

Major Larry Randall has been called to Pluto to retrieve Dr. Aaron Mikelson. Mikelson, no longer human after a horrific accident, is now melded to an AI. His enhanced senses have detected an alien artifact on Pluto’s surface, and he's not leaving without it.

Transferred to the research vessel studying Pluto, Randall and the other scientists are stumped as to the artifact's purpose and origin. Looking for similar signs of aliens they make their way to Pluto's moon, Charon, where, buried deep under its icy surface, something stirs—and wakes.

Against a backdrop of unknown alien technology and potential interplanetary war, Mikelson’s inhuman ego and obsession will risk humanity by calling something unknown to our solar system.

The Outer Planets Trilogy
Uranus
Neptune
Pluto


At the Publisher's request, this title is being sold without Digital Rights Management Software (DRM) applied.

Les Johnson

Les Johnson is a physicist, author, and NASA technologist. He is an elected member of the International Academy of Astronautics, a Fellow of the British Interplanetary Society and a member of the Science Fiction and Fantasy Writers of America, the National Space Society, and MENSA.

In his day job, Les leads the development of advanced, in-space spacecraft propulsion technologies at the NASA George C. Marshall Space Flight Center in Huntsville, Alabama, leading many of NASA’s efforts to develop solar sail propulsion for interplanetary and future interstellar travel. During his career at NASA, Les served as the Manager for the Space Science Programs and Projects Office, the In-Space Propulsion Technology Project, and the Interstellar Propulsion Research Project.

More by Les Johnson

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