Elon Musk recently unveiled SpaceX's latest plans for building cities on Mars: Its Starship rocket.
This rocket is 5.5 times taller than SpaceX's first rocket, the Falcon 1. And could be flying people to space as early as 2020 if Musk has anything to say about it. If all goes according to plan, Musk aims to have the first test flight for Starship within the next one to two months.
(Source: Tech Insider YouTube channel)