The space launch system is our way to getting to mars. The rocket has a series of steps. First the main engins will start up powered by hypergolic fuel (as shone in screenshot 1) and the solid rocket boosters will also power up. ( as shone in screenshot 2) These boosters will get us of of earth then they will be dropped off. Then.its in earths orbit. After that as soon as mars is the closest it can be to earth the interim cryogenic propulsion stage will happen getting us to mars. (As shone in screenshot 3) Then while its in mars orbit it will drop a vehicle on mars. ( as shone in screenshot 2) Then the vehicle will boost up and attach back on the rocket. Then it will go back to earth. Then finaly the orion multi purpose crew stage will come in and will drop off into the sea. ( as shone in screenshot 3). Figure out how mine flys.