Boldly Go Where No Man Has Gone Before Meaning

(idiomatic) To break new ground.

Example: 2012 January 2, Paul Newman, “Tough Trek ahead but Strauss' men know winning in Asia is the final frontier”[1], the Mail online:
  While Strauss would not exactly be boldly going where no man has gone before if he led England to victories this year in away Test series against Pakistan, Sri Lanka and India, he set foot on an airbus to Dubai knowing that 2012 represents the last great examination of his side.
1998 April, Budd Davisson, “Skyburners”[2], Popular Mechanics, volume 165, page 68:
  E-Racer Based loosely upon one of the original Rutan designs, the airplane goes where no man has gone before. In the first place, the composite canard machine is the first known example of the Rutan Long-EZ clones to have
1990, John Stewart, Antarctica: an encyclopedia: Volume 1
  These were the voyages of Scott, Amundsen, Shackleton and Mawson, Nordenskjold, Borchgrevink, de Gerlache and von Drygalski, Filchner, Shirase, Bruce and Bull, national heroes most of them, who boldly went where no man had gone before.