← Back to context

Comment by tsimionescu

2 days ago

Starship is also in theory targetting to reach Mars in 2022.

There's an unavoidable physical cap here.

It's fueled with methane and oxygen, and its size is known.

It can't be, say, $50m/flight in fuel for the same reason a 747's flight can't be; there's not enough space for that much fuel.

  • Sure, but that's true of Saturn V as well, and of Falcon 9, and Soyuz and any other rocket you want. That didn't make space deployment a viable military strategy so far, and I think we should be skeptical of any such claim about Starship.

    Also, fuel is just part of the cost of a rocket.

    • > Also, fuel is just part of the cost of a rocket.

      Sure. But if you blew up a 747 at the end of every trip, it'd be a small part of the total cost, not a major part.

      Starship's reusability makes it very clearly not like the other examples you cite, yeah? There are lots of scenarios where the US government would pay, say, $10M to deliver a payload somewhere fast, but not $250M.