I suppose we could comply with those safety regulations by dropping any requirement that the astronauts be alive during departure. Given that the remaining Apol

I suppose we could comply with those safety regulations by dropping any requirement that the astronauts be alive during departure. Given that the remaining Apollo astronauts are all in their '90s, it seems plausible that a few of them might kick the bucket in time for a posthumous trip to the red planet before the end-of-decade deadline.