Have you got any experience? foreword february abilify recall 2013 impose guard Lansdorp insists they have plenty of time to teach, as long as the future astronaut has the aptitude. Personality becomes the most important factor. “It might be that someone has a good brain and learning ability and became a plumber, but he might be a better applicant than the physicist with a Ph.D.,” Lansdorp said. “You don’t have to be an Einstein to go to Mars.”