Alan and NH at Closeout

Explanation: Alan Stern with New Horizons in the Atlas V Vertical Integration Facility hangar just after RTG (radioisotope thermoelectric generator) installation and arming on Jan. 13, 2006. New Horizons is visible through the hatchway in the Atlas V nose fairing. This is the last photograph of the spacecraft before its departure from Earth.

Pluto

Image credit: NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute.