Johan Bleeker

Johannes Alphonsus Marie "Johan" Bleeker (born 20 July 1942) is a Dutch space research and technology scientist.

He continued his studies at Leiden University, where in 1971 he obtained his doctorate under Hendrik C. van de Hulst with a thesis titled: The diffuse X-ray sky.

[1] The research and projects of Bleeker have covered amongst others: high energy astrophysics, cosmic-ray physics and X-ray astronomy.

[2] Bleeker chaired the Survey Committee that set up the long term space science program Horizon 2000 of the European Space Agency and also took part in establishing the follow-on program Horizon 2000+.

[5] Bleeker was elected member of the Royal Netherlands Academy of Arts and Sciences (KNAW, 1988),[6] of the Royal Holland Society of Sciences and Humanities (KHMW, 1989), of the Academia Europaea (AE, 1989)[7] and of the International Academy of Astronautics (IAA,1989).