NASA evaluating private space station proposals for ISS replacement
NASA outlines cost savings from ISS transition - SpaceNews
International Space Station programme - Wikipedia
SpaceX launch: Tourism mission docks with the ISS. Here's everything you need to know | CNN Business
Axiom Space unveils AX-1 crew for fully-private SpaceX mission to ISS
Pricing Policy | NASA
International Space Station | Facts, Missions, & History | Britannica
Is the International Space Station Actually a Good Investment?
How much does it cost per day to sustain a human on the ISS? - Quora
NASA will allow private astronauts on the ISS for $11,250-$22,500 a day | Ars Technica
Is the International Space Station Actually a Good Investment?
SpaceX crew carrying first paying visitors at the cost of $55M per person docks at space station | Daily Mail Online
Here's What a $52 Million Ticket to the ISS Will Get You | WIRED
NASA Looks to Private Sector for Successor to the International Space Station | Wilson Center
International Space Station - Wikipedia
Did you know that building ISS cost $150 billion? Here are some of the world's most expensive projects - The Economic Times
Here's How Much It Will Cost to Visit the International Space Station – Robb Report
How much does it cost to leave Earth? | Fox Business
Pricing Policy | NASA
How much does it cost to run the ISS for a day? - Quora
Why the International Space Station orbits at 400 kilometers in space? - Veto.be
The race to reinvent the space station | Financial Times
Want to Buy a Ticket to the Space Station? NASA Says Soon You Can - The New York Times
How the most expensive structure in the world was built - BBC Future
International Space Station: Facts about the orbital lab | Space
