SpaceX's Mars Plans Call For Massive 42-Engine Reusable Rocket

GUADALAJARA, Mexico — SpaceX Chief Executive Elon Musk announced plans by his company to develop a large new launch vehicle and reusable spacecraft that could be ready to take large numbers of people to Mars as soon as the mid-2020s.

http://spacenews.com/spacex-unveils-mars-mission-plans/