NASA was originally going to develop the
Nova launch vehicle to take man to the moon.
http://www.astronautix.com/lvs/nova.htm
It gets confusing because the name
Nova was also used for contractor studies for NASA post-
Saturn launch vehicles.
There was also debate whether the
Apollo spacecraft would fly directly to the moon called "Direct", use Earth Orbit Rendezvous (EOR), or Lunar Orbit Rendezvous (LOR). Early
Nova and
Saturn studies used "Direct" while later design studies used LOR.
Overview of the development of the
Saturn-family of launch vehicles at
Encyclopedia Astronautica:
http://www.astronautix.com/lvs/saturni.htm
Overview of losing
Apollo spacecraft designs and unbuilt modifications at
Encyclopedia Astronautica:
http://www.astronautix.com/craftfam/apollo.htm
Saturn V-family of launch vehicles at
Encyclopedia Astronautica describes variants some with solid and liquid-fueled strap on boosters:
http://www.astronautix.com/lvs/saturnv.htm
You should also make use of this forum's Search function since many images of
Saturn variants are posted throughout
Secret Projects.
