A NASA Arctic expedition designed to be the first Martian road trip on Earth becomes an epic two-year odyssey of human adventure and survival. A NASA Arctic expedition designed to be the first Martian road trip on Earth becomes an epic two-year odyssey of human adventure and survival. A NASA Arctic expedition designed to be the first Martian road trip on Earth becomes an epic two-year odyssey of human adventure and survival. A NASA Arctic expedition designed to be the first Martian road trip on Earth becomes an epic two-year odyssey of human adventure and survival.