Террорист-народоволец, talented inventor, author of project of space vehicle, publicist is incomplete description of activity of Nikolay Ivanovich Кибальчича. Кибальчич lived only 27, but the brevity of life did not prevent to remain him in history.How did a native from family of priest become a terrorist? Why did disbelieve in possibility of change of life in Russia by a peaceful way? Why all life dreamed about creation летательного vehicle, but did begin to design him only two weeks prior to executing? Life of Кибальчича is a train of contradictions, many of that until now it is difficult to explain. Now, when a more than century passed from the moment of death of Кибальчича, we can judge about what he was right in, and in what wronged. But here it should be remembered that he sincerely believed in that for what fought.