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snyps said:

If they land there, they’re stuck on it. Right?

For at least 260 days they are. Which is so long that there's a plan to send people there who don't mind not being able to come back, making it a literal suicide mission. But getting that through regulations probably not pass, and it's pretty wasteful since you'll need to train those astronauts for several years beforehand and their equipment is pretty expensive, too.