@elonmusk How much it would cost to send a probe with radar capabilities to reach sufficiently close to a comet, to scann it's structure, on reused Falcon 9 booster?
@elonmusk
To tackle sloshing problem, instead of header tank complexity, why not use main tank liquid/gass membrane, one direction
separator that would push downwards liquid methane/oxigen, keep it under optimal preasure and at the same time allowing gass bubbles to pass through