Fellow science fiction fans, wouldn't it be great if somebody developed an actual no-reaction-mass-needed drive for space ships? There are rumors it has happened; if they prove out we're off to Mars and a Moon colony becomes feasible too.
See an article in physics-astronomy.com which summarizes the findings to date. A major stumbling block so far is that nobody has a theory to explain the observed phenomena, making everyone doubt the reality of the findings. Hat tip to Instapundit for the link.