Never did any Soviet Union or US "spacecraft" leave the orbit around
the Earth.
So what was the ultimate goal of the pyramid of lies known as Space
Travel? (1)

The ultimate goal of the Space Travel Hoax lies beyond the feasibility
agenda, i.e. the conquest of the Universe, as proof of godlike
illuminati.
The ultimate goal is nothing but a consequence of the BIG LIE
technique, the base for illuminati control.
The ultimate goal, now revealed worldwide first, was to produce
"evidence" (2) to cover up the hoax at the base of the pyramid of
lies:
_ _ _ A _
L _ _ _ I N G

Notes
(1) Which means that whether the ISS/MIR/Skylab is a hoax or not is
not relevant for this discussion, as Space Travel here implies beyond
the orbit around the Earth.

(2) Soviet Union's Luna 1 "spacecraft" hoax, early 1959, marks the
begin of the relevant stage for implementing the ultimate goal.
It did not take long before the first "evidence" supporting the
ultimate goal was produced, for the Moon, October 1959, using the Luna
3 "spacecraft".
The process was completed 20 years later, with the the first
"evidence" for Jupiter, using the NASA Voyager 1 "spacecraft", January
1979.