Fact remains that NASA is not able to win my €1M Challenge (topic) and cannot calculate the fuel required for a trip to the Moon!
Of course NASA can calculate the fuel required for a trip to the moon because they have a bunch of really smart rocket scientists who do that sort of thing for a living.
BTW, NASA has an annual budget of around $18 billion or so. Why would they waste their time on your piddling million euro prize?
No, NASA cannot calculate anything. I have asked them. No reply! Please provide the names of some smart rocket scientists that can calculate the fuel required for a trip to the Moon. I pay them €1M as you know = my Challenge!
You must carry that fuel with you from take off as you cannot fill up under way. Same applies to SpaceX and their rockets doing vertical landings 10 minutes after take off and a short trip in space. The extra fuel used for landing must be aboard at take off and then transported into space, etc, and that requires a lot of extra fuel. You always get too heavy. Easy to show!
And that's why nobody will win my Challenge. Human space trips are impossible.