This poster commemorates the 15th Planetary Congress of the Association of Space Explorers (ASE). The Congress took place October 4-9, 1999 in Bucharest, Romania. Bearing the authentic signatures of the participating astronauts from 12 nations, it is part of a series of limited collector’s edition posters that have been produced and signed at each ASE Congress since the Association was founded in 1985. Only161 editions of this poster were signed at the 15th Congress. The poster has two headings, the main heading in English at the top, with the Russian displayed at the bottom. Around the periphery are printed translations of “Association of Space Explorers” in the native languages of all individuals who have flown in space. Clockwise, from upper left with English at the top, they include Vietnamese, Hindi, Bulgarian, Italian, Afghani, German, Polish, Japanese, Romanian, Dutch, Czech, Hungarian, Mongolian, Spanish, Arabic and French. The background is taken from NASA archive photo # 83 HC 213 which has been used for each set of posters in the series. # in series: 161 Signature key included