6 STAMPS :
Spoutnik 1: 4 Oct.1957. 1st artificial satellite of the Earth.
Explorateur 1: 31 Jan.1958. 1st American artificial satellite of the Earth built by W. Von Braun.
Lunik 1: 2 Janv. 1959. 1st shot toward the Moon & 1st artificial planet of the Sun.
Ranger 7: 28 Juillet 1964. 1st photo of the Moon ground by NASA, map-making of the Moon preparing Apollo missions.
Mariner 4: 27 Novembre 1964. (start) 1st Photo-Mission to Mars flyby at 8500 Km the 14th July 1965 (the probe passes the planet)
Mars Express 2003: (FUTURE) co-operation ESA-NASA, returning to Earth samples of the Mars ground using on board BEAGLE recoverable ground drones.