Spacecraft Will Commit "Grand Theft Pluto"... And No One Will Be Able To Catch It By the time you read this, NASA's New Horizons probe will be swinging by Jupiter, on its way to a rendezvous with the almost-planet Pluto. The space agency says New Horizons will take advantage of its first interplanetary encounter -- gathering photos, data, and an extra 9000 miles per hour, courtesy of the largest planet in our solar system. New Horizons is already the fastest spacecraft ever to leave Earth, but it needs even more speed to catch Pluto, which is receding from the sun....