W e've ventured to set out into space to make real, once almost an unachievable, vision and dream about touching the stars. Finally, after many centuries, we hardly managed to mark our presence there. Yes, „hardly”, as this, undoubtedly great, success hasn’t make us, so far, cosmic sailors in awe-inspiring spaceships capable to surpass their predecessors from the Age of Exploration (dated on late the 15-17 th century). Although it hasn’t happened yet, we focus our efforts on various unmanned missions, simultaneously striving to send astronauts to Mars; our nearest, possible-to-visit planet in the Solar System. Nevertheless earlier, we want return to the Moon, ...