“His venture into the vacuum of space began the history of extra-vehicular activity that makes today’s Space Station maintenance possible,” NASA said on Twitter.
I roved at random through the town, / … / And caught once more the distant shout, / The measured pulse of racing oars / Among the willows; …
Blue lies are those used to control the person or to make the job easier in situations where force could be used. For example, to make an arrest eaiser, an officer will lie about where the suspect is being taken, or to get someone out on the street to be arrested, the officer will say that she only wants to talk.
Though we say we are quite clear about it and understand when someone uses the expression, unlike that other expression, maybe we're in the same plight with regard to them both.