I remember reading about the Belts in the early 60s (IIRC). It most definitely spooked me. How will men (erm humans) ever get thru the Belts safely ? But then t

I remember reading about the Belts in the early 60s (IIRC). It most definitely spooked me. How will men (erm humans) ever get thru the Belts safely ? But then they disappeared from any and all discussions of spaceflight.