Anyone else following the development of nuclear propulsion?
https://www.nasa.gov/press-release/n...concept-awards
This is exciting because it very obviously the key to real space exploration--potentially cutting transit times in half. And it is eminently doable with current fission technology.
And, on a longer horizon, there is reason to hope for fusion propulsion in our lifetime:
https://www.nasa.gov/directorates/sp...driven_rocket/
All these steps to get things in orbit, maybe to the moon, are great. But the real fun begins with serious space propulsion.