6 STAMPS :
SAKIGAKE: August 19 1985 Japan satellite launched from UCHINOURA
GIOTTO: July 2 1985 First Scientific Esa satellite
VEGA 1/2: 1Dec. 15 and June 14 1985 2 USSR satellite for Halleys'Comet, encountered March 9 and May 15 1986.
ROSETTA: FUTURE ESA Project Launch at Kourou Space Center by Ariane 5, in 2003.
I.U.E.: Jan. 26 1978 International Ultraviolet.
PIONEER VENUS: Dec 26 1985 Around Venus, Nasa satellite is re-activated by signal sent to Pioneer Venus Orbiter, to point it to Halley's Comet.
On the frame of sheetlet 2 :
STELLAR EXPEDITION FUTURE - WSN NOSTROMO - Others Solar system, Double stars and multiple star systems. - Expansion of Earth and Mankind.