Strauss' “Blue Danube” waltz has finally made it into space, nearly a half-century after missing a ride on NASA's Voyagers.

Strauss' "Blue Danube" is heading into space this month to mark the 200th anniversary of the waltz king's birth.

Austrian composer Johann Strauss II's "The Blue Danube" has, for many people, been synonymous with space travel since it was ...