Why doesn't NASA use centrifugal force to simulate artificial gravity similar to that in a carnival ride that spins really fast in the International Space Station? - Quora
![OC] The cost of launching things into space (per kilogram) to lower earth orbit (altitude < 1200 miles) was almost stagnant for 40 years before SpaceX entered the space (pun intended) and OC] The cost of launching things into space (per kilogram) to lower earth orbit (altitude < 1200 miles) was almost stagnant for 40 years before SpaceX entered the space (pun intended) and](https://i.redd.it/ehxqmyfpgle71.jpg)
OC] The cost of launching things into space (per kilogram) to lower earth orbit (altitude < 1200 miles) was almost stagnant for 40 years before SpaceX entered the space (pun intended) and
![NASA's Multibillion-Dollar Bet on the Moon: Good News for Space Companies, and for Taxpayers Too | The Motley Fool NASA's Multibillion-Dollar Bet on the Moon: Good News for Space Companies, and for Taxpayers Too | The Motley Fool](https://g.foolcdn.com/image/?url=https%3A%2F%2Fg.foolcdn.com%2Feditorial%2Fimages%2F529247%2Fspace-launch-system-2018_05_10-12_39_51-utc.jpg&op=resize&w=700)