Imagine that you could have 150,000 tons of cargo (or people) delivered to equatorial LEO annually, at $60/lbm. What would you do with it? What are the markets? We’re talking on the order of $5B/year.
[Update late afternoon]
Note that that’s less than a quarter of the NASA budget…
For that money, we could have 150,000 tons of material/people in orbit, or pay for another year of SLS/Orion.
[Friday-morning update]
Thanks to a comment, I went and rechecked, and found an error in the spreadsheet. The cost is more like $20/lbm.
There is a lot more involved in human reproduction on Mars than the survival of the sperm. We continue to have no idea if we can safely gestate in partial gravity.
You have to watch this video!!! This is unbelievable!!! It brings up a lot of good questions! 1. Will there be RapVac on SN20? 2. How many engines will Super Heavy land with? 3. Will there be a payload (I don’t think so) 4. Will it go orbital? (I don’t think so) https://t.co/wrXzZuAOfz
— Everyday Astronaut (@Erdayastronaut) June 5, 2021