I don't know if the disintegration of the Apollo 8 mission capsule would have given NASA pause in continuing future Apollo flights. If they would wipe off the tears and then go on to launch Apollo 9 at its scheduled time. Or would months have been spent on an accident investigation and Apollo missions would have been grounded?
Please explain what you mean by a Soviet space station? Do you mean
Salyut or something like
Mir? For a United States space station, do you mean
Skylab or the 12-person
Saturn-launched module designed by McDonnell-Douglas? This 12-person 30-foot wide module would grow to the 50-person space base and then the 400-person space hotel. Or do you mean a
Skylab that had been launched higher in Earth orbit? Or do you mean the United States Air Force's Manned Orbiting Laborary (MOL)?
On the Soviet side, their space program was in disarray mostly from a clash of personalities and competing programs using up scarce financial resources. Vasily Mishin was no Sergei Korolev. He didn't have the political savvy to negotiate the Soviet political landscape or provide the leadership of Sergei Korolev. People mistakenly believe that the Soviet space program was centralized and had a common goal. They are not aware that it was composed of squabbling design bureaus who had very different ideas of how things should be accomplished.
Further, the N1 rocket that Korolev designed had a complicated array of 30 rocket engines on its first stage using the Kuzentzov NK-15 engine and later the NK-33. From what I have read, the piping was so complicated that it was damaged on the way to Baikonur because of transport by rail.
Sergei Korolev hated Valentin Glushko who had a near monopoly on rocket engines in the Soviet Union. This is because Glushko testified against Korolev in Stalinist times that sent Korolev to a Gulag in the 1930s. In addition, the rocket engine that Glushko offered to Korolev, the RD-270, burned
unsymmetrical dimethylhydrazine (UDMH) and
nitrogen tetroxide (N2O4). Propellents which are toxic. There was also the fear that an explosion at Baikonur would have rendered the launch site toxic for ten to twelve years. In addition, Korolev insisted on using high grade fuels such as kerosene, oxygen, and hydrogen.
Therefore, Korolev bypassed Glushko and went to Nikolai Kuznetzov who had experience with designing jet engines for aircraft but not rocket engines. The NK-15 was his first rocket engine. It was small and underpowered and therefore the N1 required a complicated array of rocket engines and complex piping to feed these engines kerosene and oxygen fuel.
Then there is Vladmir Chemolei who didn't like the N1 either and felt the Soviet Union should use his Universal Rocket (UR)-700 for a manned lunar mission that was in development simultaneously with the N1, but unbuilt. This design used Glushko's RD-270 that was so objectionable to Korolev.
After the two devastating explosions of the N1 in 1969, Chemolei continued to lobby hard for the use of his UR-700 for a manned mission to the moon. Which was a Moon direct launch vehicle and used an entirely different moon lander than the N1. Chemolei continued to work on his moon hardware even though it had been decided to continue to back the N1.
Chemolei did receive funds to adapt the UR-700 for a manned mission to Mars. The new rocket was designated UR-700M.
So the Soviet Union had two competing manned space programs going on similtaneously in addition to the military-initiated
Salyut program.
Some authors have suggested that the N1 was fatally flawed from the start and would have never been made to work while others believe that given time Mishin would have been able to solve the technical problems that plagued the project.
Due to the secrecy of the project and lack of funding, very little testing was done of N1 components prior to assembly as a launch vehicle. Other authors and historians have suggested that N1 components had severe quality control problems.
Mishin was replaced by Valentin Glushko in 1974. Glushko threw out the N1 and began to work on an entirely new rocket design that was named
Vulkan "Volcano", that would later evolve into
Energiya, for a manned mission to the Moon to establish a moonbase called
Zvevda or "Star" in Russian. The first mission would fly in 1980.
Some authors have suggested that the Soviets could have gone to the Moon first using Chemolei's UR-500 "Proton" rocket. This would have entailed four launches to Low Earth Orbit and the assembly of the vehicle in Earth orbit. Unfortunately, the "Proton" was still an unproven rocket in 1968 and had its share of launch failures before becoming the most reliable launch system in the world. Further, LEO assembly had not been tried. Chemolei and Glushko believed that direct launches were the safest and orbital assembly was too dangerous and uncertain. Unfortunately, direct launches require heavier lift launch vehicles such as
Vulkan or Chemolei's UR-700.