Why NASA should go all-in on nuclear propulsion

Why NASA should go all-in on nuclear propulsion

Viewed from orbit, Jackass Flats — situated in southern Nevada about 65 miles northwest of Las Vegas — could easily be confused for Mars. The alluvial basin is full of tan and gray regolith, hued slightly red, and almost completely surrounded by carved, rocky hills. It was here, a half-century ago, that NASA engineers tested nuclear rockets intended to get us to the Red Planet by 1978. Officials had even grander hopes for the descendants of thos…