Getting people to Mars is something you may have read briefly about online but you probably don’t know the nitty-gritty of how it’s going to work. Elon Musk’s Space X is one company that wants to get humans to the red planet and they want to do it in a cost effective way, bringing down the cost of space travel.

So it needs to use the least amount of fuel to keep finances down. How will it do that? This video from Real Engineering explains.

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