Lets say that we have an interplanetary society using the ice from asteroids to convert it into rocket fuel, how long would it take before we have used up all the ice on the asteroids.
- We would have a much higher population. Currently it is around 8 Billion people. For this questions we assume we have a popular of around 100 Billion
- There would be around 50000 rockets every day needing to get refilled
- Let’s assume that reuse able rockets are filled on Earth and land there, so only the small capsules are refilled. Even though the size I am thinking of isn’t so small. Something of the size of a Starship capsule.
- Also the rockets will only be 80% filled because I assume there would already be some fuel left on the rocket from beforehand.
- To make calculations easier, lets say each capsule weighs about 250 tons.
- In the calculations only consider the ice from the asteroids in the inner asteroid belt. Nothing from the Kuiper Belt
- The rockets will have on average 5km/s of delta V after being refilled.
With these conditions, how long would it take before all the ice on the asteroids will be used up?