In an "Ask Me Anything" session on Reddit Monday evening (Jan. 5), Musk told readers that the details of his Mars Colonial Transporter would be unveiled by the end of the year, and that the plan would be different from the Dragon capsules and Falcon 9 rockets SpaceX is flying today.

"The Mars transport system will be a completely new architecture," Musk wrote in the Reddit AMA. "Am hoping to present that towards the end of this year. Good thing we didn't do it sooner, as we have learned a huge amount from Falcon and Dragon." [SpaceX's Plan for Mars & Reusable Rockets (Video)].

The goal will be to send 100 metric tons (110 tons) of "useful payload," he added. "This obviously requires a very big spaceship and booster system," Musk said. 

This year, SpaceX will also reveal plans for spacesuits that will meet both design aesthetics and utility requirements, Musk noted. Although he did not specify where the spacesuits would be used, it is possible that they could form the basis for future Mars exploration.