A spaceship is stationed on Mars. How much energy must be expended on the spaceship to launch it out of the solar system ? Mass of the space ship = 1000 kg, mass of the sun = `2xx10^30 kg`, mass of mars = `6.4xxl0^23 kg`, radius of mars = 3395 km, radius of the orbit of mars = `2.28 `x10^8 km`, G = `6.67xx10^-11 N m^2 kg^-2`.