The new Mars launch system will likely be 9 meters in diameter instead of 12 meters. This will allow it to be built in the current Spacex factories. This will likely mean 21 raptor engines and not 42 engines like in the 2016 design.
The 2016 ITS had a very large crew section. It is not clear how the crew section will change and how the Mars landing portion will change.
Plan is to do powered landings on Mars for sure, but with a vastly bigger ship
— Elon Musk (@elonmusk) July 19, 2017
Brian Wang is a Futurist Thought Leader and a popular Science blogger with 1 million readers per month. His blog Nextbigfuture.com is ranked #1 Science News Blog. It covers many disruptive technology and trends including Space, Robotics, Artificial Intelligence, Medicine, Anti-aging Biotechnology, and Nanotechnology.
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