If they are feasible then everybody will be doing it soon.
Thing is, they aren’t and they won’t be.
Get ready for a bunch of “dog ate my homework” excuses for years and years and years.
We have had fifty plus years of them so far....
They’re feasible but they’re a waste of money.
Please provide a list for why this can't be done.
Do you believe there are no landers on Mars? No Saturn/Jupiter fly-bys?
cgbg, you haven’t been paying attention to SpaceX lately, have you?
They are getting things done that NASA never could do, and in 10% of the time. Why land a rocket and re-use it, when you can just get the taxpayers to buy you another one.
When it comes to [anything] the private sector does it faster and cheaper.
Elon Musk will have us back on the moon in a couple of years.