A project of the space cruise over the route “Earth-Mars-Earth” is considered. Design of electric rocket train, whose energy source is a semiconductor solar panel and a superconducting electrorocket engine (MARS) of new design is used as a mover, is developed. The concept of the cruise, which allows to reduce time of interorbital flight in twice, owing to refueling with working body on orbit of Mars, is developed. Development of the space locomotive with 4 MARS engines rated at 600 kW in which nitrogen is used as working substance, was being carried out. A new design of takeoff-landing capsule, in which cabin can be placed 10 space tourists, is developed. The studies carried out on the mathematical model, which takes into account the changing of power provided by onboard power plant, depending on the distance from the Sun, has shown that cruise may be done within 77 days including the stay of tourists on the Martian surface during 7 days. The project provides for implementation three cruises on the surface of Mars and 15 cruises on the lunar surface during two years with total cost of 2.2 billion dollars.