Andrew Feustel, an American geophysicist and a NASA astronaut during the visit of the Czech Academy of Science together with then president of the Czech Academy of Science Jiří Drahoš and the Norman L. Eisen, then United States Ambassador to the Czech Republic.
<a href="//commons.wikimedia.org/wiki/User:Akademie_v%C4%9Bd_%C4%8Cesk%C3%A9_republiky" title="User:Akademie věd České republiky">Akademie věd České republiky / Czech Academy of Science</a>
CC BY-SA 3.0 cz
<span class="int-own-work" lang="en">Own work</span>