The path of a cosmonaut is not an easy, triumphant march to glory. You have to get to know the meaning not just of joy but also of grief, before being allowed in the spacecraft cabin. Many say exploration is part of our destiny, but it’s actually our duty to future generations and their quest to ensure the survival of the human species. Dinosaurs are extinct today because they lacked opposable thumbs and the brainpower to build a space program.