The term "moonshot" is defined in the Cambridge Dictionary as "a plan or aim to do something that seems almost impossible."  Its original meaning, of course, was literal: aiming to land on the moon, something NASA achieved in the 1960s. Now, NASA has another moonshot: getting astronauts back to the moon's surface.  It's not that that task itself seems impossible — it's the timeline. NASA is aiming to put astronauts on the lunar surface in " early 2028 " — just 24 months from now. However, while the space agency has contracted lunar landers to Jeff Bezos's Blue Origin and Elon Musk's SpaceX, neither has produced a finished product, at least not publicly. SpaceX has been testing its massive Starship rocket, a version of which is needed to take astronauts to the moon. It has seen measured success, but it is not ready. Starship sits on the launch pad in Boca Chica, Tex. in April 2023. (SpaceX) And without a lunar lander, there is no lunar mission. Can NASA deliver given its history of delays?…