
1) Russian invention
Found on
https://www.crosswordclues.com/clue/space-tourism

Space tourism is space travel for recreational, leisure or business purposes. A number of startup companies have sprung up in recent years, such as Virgin Galactic and XCOR Aerospace, hoping to create a sub-orbital space tourism industry. Orbital space tourism opportunities have been limited and expensive, with only the Russian Space Agency provid...
Found on
http://en.wikipedia.org/wiki/Space_tourism

(from the article `Physical Sciences`) ...the wraps off plans to build inflatable space stations and offered a $50 million America`s Space Prize for establishing a reliable manned orbital ... ...aboard a Russian spacecraft between 2001 and 2007, used their own resources to pay the multimillion-dollar price for the voyage. Such individua...
Found on
http://www.britannica.com/eb/a-z/s/134

Artist's view of a future spaceport Space tourism has long been a factor in the aerospace industry, although until recent years no attempt has been truly successful. In the 1960s, Pan Am and Thomas Cook began a register of names for those interested in lunar tourism. In its heyday, the list num...
Found on
http://www.daviddarling.info/encyclopedia/S/space_tourism.html
No exact match found.