
could be used both to conduct reconnaissance mis-
sions and to serve as a vehicle for the first human
space flight missions. The spacecraft was called
Vostok when it was used to carry a human into
space. The first human was lifted into space in Vos-
tok 1 atop a modified R-7 rocket on April 12, 1961,
from the Baikonur Cosmodrome in Kazakhstan.
The passenger, Yuri Gagarin, was a twenty-seven-
year-old Russian test pilot.
There were five additional one-person Vostok
missions. In August 1961, Gherman Titov at age
twenty-five (still the youngest person ever to fly
in space) completed seventeen orbits of Earth in
Vostok 2. He became ill during the flight, an inci-
dent that caused a one-year delay while Soviet
physicians investigated the possibility that humans
could not survive for extended times in space. In
August 1962, two Vostoks, 3 and 4, were orbited
at the same time and came within four miles of
one another. This dual mission was repeated in
June 1963; aboard the Vostok 6 spacecraft was
Valentina Tereshkova, the first woman to fly in
space.
As U.S. plans for missions carrying more than
one astronaut became known, the Soviet Union
worked to maintain its lead in the space race by
modifying the Vostok spacecraft to carry as many
as three persons. The redesigned spacecraft was
known as Voskhod. There were two Voskhod mis-
sions. On the second mission in March 1965, cos-
monaut Alexei Leonov became the first human to
carry out a spacewalk.
Korolev began work in 1962 on a second-
generation spacecraft, called Soyuz, holding as
many as three people in an orbital crew compart-
ment, with a separate module for reentry back to
Earth. The first launch of Soyuz, with a single cos-
monaut, Vladimir Komarov, aboard, took place on
April 23, 1967. The spacecraft suffered a number
of problems, and Komarov became the first person
to perish during a space flight. The accident dealt
a major blow to Soviet hopes of orbiting or land-
ing on the moon before the United States.
After the problems with the Soyuz design were
remedied, various models of the spacecraft served
the Soviet, and then Russian, program of human
space flight for more than thirty years. At the start
of the twenty-first century, an updated version of
Soyuz was being used as the crew rescue vehicle—
the lifeboat—for the early phase of construction
and occupancy of the International Space Station.
While committing the United States in 1961 to
winning the moon race, President John F. Kennedy
also made several attempts to convince the Soviet
leadership that a cooperative lunar landing pro-
gram would be a better alternative. But no positive
reply came from the Soviet Union, which contin-
ued to debate the wisdom of undertaking a lunar
program. Meanwhile, separate design bureaus
headed by Korolev and Vladimir Chelomei com-
peted fiercely for a lunar mission assignment. In
August 1964, Korolev received the lunar landing
assignment. The very large rocket that Korolev de-
signed for the lunar landing effort was called the
N1.
Indecision, inefficiencies, inadequate budgets,
and personal and organizational rivalries in the So-
viet system posed major obstacles to success in the
race to the moon. To this was added the unexpected
death of the charismatic leader and organizer Ko-
rolev, at age fifty-nine, on January 14, 1966.
The Soviet lunar landing program went for-
ward fitfully after 1964. The missions were in-
tended to employ the N1 launch vehicle and a
variation of the Soyuz spacecraft, designated L3,
that included a lunar landing module designed for
one cosmonaut. Although an L3 spacecraft was
constructed, the N1 rocket was never successfully
launched. After four failed attempts between 1969
and 1972, the N1 program was cancelled in May
1974, thus ending Soviet hopes for human mis-
sions to the moon. On July 20, 1969, U.S. astro-
naut Neil Armstrong stepped from Apollo II Lunar
Module onto the surface of the moon.
By 1969, the USSR began to shift its emphasis
in human space flight to the development of Earth-
orbiting stations in which cosmonaut crews could
carry out observations and experiments on mis-
sions that lasted weeks or months. The first Soviet
space station, called Salyut 1, was launched April
19, 1971. Its initial crew spent twenty-three days
aboard the station carrying out scientific studies
but perished when their Soyuz spacecraft depres-
surized during reentry. The Soviet Union success-
fully orbited five more Salyut stations through the
mid-1980s. Two of these stations had a military
reconnaissance mission, and three were devoted to
scientific studies. The Soviet Union also launched
guest cosmonauts from allied countries for short
stays aboard Salyuts 6 and 7.
The Soviet Union followed its Salyut station se-
ries with the February 20, 1986, launch of the Mir
space station. In 1994–1995, Valery Polyakov spent
438 continuous days aboard the station. More than
one hundred people from twelve countries visited
SPACE PROGRAM
1442
ENCYCLOPEDIA OF RUSSIAN HISTORY