On 22 October 2014, cosmonauts Maxim Suraev (top left in the picture the glove of his space suit is visible) and Aleksandr Samokutyayev removed the protective cover of EXPOSE-R2 (the R stands for the Russian version of the exposure platform, the 2 for the second experiment of this kind on the International Space Station (ISS)). In this experimental setup, BIOMEX was one of four experiments. The other experiments were BOSS, PSS and IBMP. The ISS offered ideal conditions for these experiments. After the covers were removed, the samples were permanently exposed to the harsh conditions of space, with a vacuum, large temperature fluctuations and intense ultraviolet radiation.