To discover new and uncharted territory or do something that no one has done before. Taken from an introductory phrase from the original Star Trek television series, "to boldly go where no man has gone before" (changed in later versions of the series, for the sake of political correctness, to "where no one has gone before"). With this latest drug, scientists are hoping to boldly go where no one has gone before and cure cancer. With the surface of the planet largely documented, one must enter the depths of the sea to boldly go where no one has gone before.