The only way to get humans to Mars in 90 days in this century, is to either use a Nerva type escape stage or increase the mass of the chemical propellant.
There is is no prospect of a...
Two headlines guarantee to get lots of polarized posts, not just here but other space sites. That is any mention of Trump or Space X.
I think it is because both in their different ways are...
Aluminium is a fuel in solid fueled boosters
That would be to/from the Earth/Moon L1 point?
That distance from the lunar surface is about 55000km and varies by around 10%. I doubt that is a possibility especially using existing...
i agree about the artificial gravity, it's a long overdue experiment to replace all the negative effects of weightlessness.
but please don't shout