[The Louiswu]

“ physics prevents it.”

Physics just illustrates how much energy it would take to return that mighty little helicopter back to Earth, the only thing preventing its return is a lack of will on our part.

[Empire_of_Liberty]

I think it is more than a lack of will.

Jules Verne, it turns out, was right. It would be best to launch into space from a gun. That would splatter any astronauts, so we get as close to that as we can, with something like 12 G’s and a comfortable couch.

A return from Mars would be way worse than a return from Earth’s moon. The return from the Moon left a spaceship looking like burnt pizza.

I don’t think a return from Mars can be done.