/sci/ - Science & Math

>>15427678
Proof but keep in mind that the propellant mass is only 21 tons. Not sure if Centaur V would fit but you're still no where close to what a methalox stage would be and you can use the Raptor engine.
>>15427680
No one is saying this is a replacement for chemical Mars architectures to set up the colony but there is the eventual need to decrease transit time under some circumstances to less than 3 months/500 - 1000 day long mission in total and gain the ability to do it outside of a transfer window, like if they needed to send emergency supplies or evacuate.