The Mars Internship Experience is a 10-week summer program providing excellent depth of experience with real business problems and opportunities for one of our iconic brands such as Dove, Extra, M&M’S, Milky Way, Snickers, Twix, Orbit, Skittles, 5, and more! The Mars Compass , inspired by the Economics of Mutuality, is used to measure the company’s progress in service of its purpose; The world we want tomorrow starts with how we do business today.