Possible Clues:

• Yuri Gagarin, for example
• Russian space traveller
• Literally, ''universe sailor''
• Yuri Gagarin, for one
• Long distance traveller found cost cut by ridiculous amount
• Long distance traveller on a custom machine
• I have out-of-this-world travel expense consuming my French gold
• One visits moon, as cut is abandoned
• One getting into orbit as moon shot is constrained by economy
• Soviet space traveller