6 STAMPS :
VOYAGER 2 August 20 1977 Start from KSC - exit Asteroid belt Sept 10th 1978 - 6000 Pictures of ring belt of planet and travels from Uranus System composed of 10 Moons. Beautiful pictures of Planet and satellites UMBRIEL and TITANIA.
PLUTO PROJECT FUTURE Eleven years of travel for study the last (for the moment) planet of the Solar System, 6 Billions of KM, 6 light hours to get to Earth. Little sounding probe of 120 Kg for flyby Pluto and its Charon Moon.
PLUTO Project FUTURE Evolution of Pluto Project, Study of Pluto and Charon
NUAGE DE OORT Exterior part of the Solar System, tank of comets and asteroid out of Pluto orbit
KUIPER 2012 Originally designated the Pluto Fast Flyby (PFF), the Pluto Kuiper Express mission is designed to fly by and make studies of the planet Pluto and its satellite Charon in 2012
VOYAGER 2 FOLLOW NEPTUNE - Arrival August 24th 1989, 12 years travel to join the 8th planet of the Solar System, Picture of Triton August 25, close-up photo mission. Continue out of the Solar System.
On the frame of sheetlet 2 :
PIONEER exit Solar System. Message to extraterrestrial intelligence put on the hull of Pioneer.