NASA has released additional details about how it plans to use commercial space stations after the retirement of the ISS.
NASA advances plan to commercialize International Space Station
Blue Origin and Sierra Space Planning Commercial Space Station –
Lunar Gateway - Wikipedia
NASA unveils $27B budget plan as administrator touts agency successes
NASA details intent to replace the International Space Station with a commercial space station by 2030
Boeing Starliner - Wikipedia
It's not what it looks like – the cost of ISS per year – Zapata Talks NASA
NASA: Supply shipment takes off for International Space Station
GAO says NASA plan to extend International Space Station life to 2020 is 'reasonable'
NASA mulls commercial space plan
NASA Provides Updated International Space Station Transition Plan - SpaceRef
Space, ClickOrlando
NASA May Pay $1 Billion to Destroy the International Space Station. Here's Why
International Space Station - NASA