Joint Issue with China - 1 of 2 stamps issued on Astronomy (may have been issued in late 2011)
San Marino - RTV on satellite
Mali - 50th Anniversary of Vostok 3 & 4
South Africa - South Africa’s role in the field of astronomy - also issued a minisheet
Austria - 100 Years since the Discovery of Cosmic Radiation by Victor F. Hess
Hungary - MASAT - 1 - First Hungarian Satellite
Curaco (formally part of Netherlands Antilles) - Transit of Venus
Grenada Carriacou - 50th anniversary of 'Moon' speech by JFK
Great Britain - Space Science
Portugal - Venus' Solar Transit 2012
Kazakhstan - Space (issued in sheetlets of 10)
Ivory Coast (Cote d'Ivore) - Wernher Von Braun
Congo Republic - John Glenn's Mercury 6 Flight - Two minisheets were also issued
China - Space Flight
China - Successful Rendezvous Tiangong 1 Shenzhou 9
China - Successful Rendezvous Tiangong 1 Shenzhou 9 Special Blessing from Space
Guinee Republic - 45th anniversary of the first Soyuz flight & the death of pilot Vladimir Komarov
Guinee Republic - Solar Eclipse
Guinee Republic - Mercury & Messenger Spacecraft
Ivory Coast (Cote d'Ivore) - Death of Neil Armstrong
Ivory Coast (Cote d'Ivore) - Johannes Kepler
Ivory Coast (Cote d'Ivore) - Edmond Halley
Palau - 40th anniversary of the end of Apollo Program
Ukraine - 50th anniversary of Vostok 4 (sheetlet of 12)
Burundi - 20th Anniversary of MIR
Burundi - 50th anniversary of the first human space flight.
Latvia - Fridrihs Canders
South Africa - Transit of Venus
Mozambique - John Glenn's Mission in Friendship 7
St. Vincent & the Grenadines - Various Anniversaries
Turks & Caicos - - John Glenn's Mission in Friendship 7
Democratic Republic of the Congo - The Olympics & Satellites
Mali - Last Shuttle Flight & 2011 Nobel Prize Winners
French Antarctic Territories - 50th anniversary CNES - 2 of 5 stamps
Hong Kong - Solar Eclipse
Russia - 125th birth anniversary of F.A. Zander
Madagascar
Namibia - 20 Years of Telecom
China
Chad - 50th Anniversary of the Kennedy Space Center
Bulgaria - The Grand Parade of the Planets