The International Day of Human Space Flight is the annual celebration, held on 12 April, of the anniversary of the first human space flight by Yuri Gagarin (USSR). It was proclaimed at the 65th session of the United Nations General Assembly on 7 April 2011, [1] a few days before the 50th anniversary of the flight.
Yuri Gagarin crewed the Vostok 1 mission in 1961, completing one orbit around Earth over 108 minutes in the Vostok 3KA spacecraft, launched on a Vostok-K rocket from Baikonur Cosmodrome in Kazakhstan, USSR.
In the Soviet Union, 12 April was commemorated as Cosmonautics Day since 1963, and is still observed in Russia and some former Soviet states. Yuri's Night, also known as "World Space Party" is an international observance initiated in the United States in 2001, on the 40th anniversary of Gagarin's flight.
Also commemorated on this date is the first Space Shuttle launch, STS-1 of Columbia on 12 April 1981, exactly 20 years after the first human spaceflight.
An astronaut is a person trained, equipped, and deployed by a human spaceflight program to serve as a commander or crew member aboard a spacecraft. Although generally reserved for professional space travelers, the term is sometimes applied to anyone who travels into space, including scientists, politicians, journalists, and tourists.
Human spaceflight is spaceflight with a crew or passengers aboard a spacecraft, often with the spacecraft being operated directly by the onboard human crew. Spacecraft can also be remotely operated from ground stations on Earth, or autonomously, without any direct human involvement. People trained for spaceflight are called astronauts, cosmonauts (Russian), or taikonauts (Chinese); and non-professionals are referred to as spaceflight participants or spacefarers.
Vostok 1 was the first spaceflight of the Vostok programme and the first human orbital spaceflight in history. The Vostok 3KA space capsule was launched from Baikonur Cosmodrome on 12 April 1961, with Soviet cosmonaut Yuri Gagarin aboard, making him the first human to reach orbital velocity around the Earth and to complete a full orbit around the Earth.
Yuri Alekseyevich Gagarin was a Soviet pilot and cosmonaut who, aboard the first successful crewed spaceflight, became the first person to journey into outer space. Travelling on Vostok 1, Gagarin completed one orbit of Earth on 12 April 1961, with his flight taking 108 minutes. By achieving this major milestone for the Soviet Union amidst the Space Race, he became an international celebrity and was awarded many medals and titles, including his nation's highest distinction: Hero of the Soviet Union.
Vladimir Mikhaylovich Komarov was a Soviet test pilot, aerospace engineer, and cosmonaut. In October 1964, he commanded Voskhod 1, the first spaceflight to carry more than one crew member. He became the first Soviet cosmonaut to fly in space twice when he was selected as the solo pilot of Soyuz 1, its first crewed test flight. A parachute failure caused his Soyuz capsule to crash into the ground after re-entry on 24 April 1967, making him the first human to die in a space flight.
Valentina Vladimirovna Tereshkova is a Russian engineer, member of the State Duma, and former Soviet cosmonaut. She was the first woman in space, having flown a solo mission on Vostok 6 on 16 June 1963. She orbited the Earth 48 times, spent almost three days in space, is the only woman to have been on a solo space mission and is the last surviving Vostok programme cosmonaut. Twenty-six years old at the time of her spaceflight, she remains the youngest woman to have flown in space under the international definition of 100 km altitude, and the youngest woman to fly in Earth orbit.
Vostok 2 was a Soviet space mission which carried cosmonaut Gherman Titov into orbit for a full day on August 6, 1961, to study the effects of a more prolonged period of weightlessness on the human body. Titov orbited the Earth over 17 times, exceeding the single orbit of Yuri Gagarin on Vostok 1 − as well as the suborbital spaceflights of American astronauts Alan Shepard and Gus Grissom aboard their respective Mercury-Redstone 3 and 4 missions. Titov's number of orbits and flight time would not be surpassed by an American astronaut until Gordon Cooper's Mercury-Atlas 9 spaceflight in May 1963.
Gherman Stepanovich Titov was a Soviet and Russian cosmonaut who, on 6 August 1961, became the second human to orbit the Earth, aboard Vostok 2, preceded by Yuri Gagarin on Vostok 1. He was the fourth person in space, counting suborbital voyages of US astronauts Alan Shepard and Gus Grissom. A month short of 26 years old at launch, he is the youngest professional astronaut and was the youngest person to fly in space until 2021 when Oliver Daemen flew on Blue Origin NS-16 at the age of 18. Since Daemen flew a suborbital mission, Titov remains the youngest person to fly in Earth orbit.
Vostok was a class of single-pilot crewed spacecraft built by the Soviet Union. The first human spaceflight was accomplished with Vostok 1 on April 12, 1961, by Soviet cosmonaut Yuri Gagarin.
The Vostok programme was a Soviet human spaceflight project to put the first Soviet cosmonauts into low Earth orbit and return them safely. Competing with the United States Project Mercury, it succeeded in placing the first human into space, Yuri Gagarin, in a single orbit in Vostok 1 on April 12, 1961. The Vostok capsule was developed from the Zenit spy satellite project, and its launch vehicle was adapted from the existing R-7 Semyorka intercontinental ballistic missile (ICBM) design. The name "Vostok" was treated as classified information until Gagarin's flight was first publicly disclosed to the world press.
Yuri's Night is an international celebration held every April 12 to commemorate milestones in space exploration. It is named for the first human to launch into space, Yuri Gagarin, who flew the Vostok 1 spaceship on April 12, 1961. In 2011, Yuri's Night was celebrated at over 567 events in 75 countries on seven continents. Yuri's Night is often called the "World Space Party". The launch of STS-1, the first Space Shuttle mission, is also honored, as it was launched 20 years to the day after Vostok 1, on April 12, 1981.
Korabl-Sputnik 5 or Vostok-3KA No.2, also known as Sputnik 10 in the West, was a Soviet spacecraft which was launched in 1961, as part of the Vostok programme. It was the last test flight of the Vostok spacecraft design prior the first crewed flight, Vostok 1. It carried the mannequin Ivan Ivanovich, a dog named Zvezdochka, frogs, monkeys, mice, rats, plants, television cameras and scientific apparatus.
Cosmonautics Day is an anniversary celebrated in Russia and some other post-Soviet states on 12 April. In 2011, at the 65th session of the United Nations General Assembly, 12 April was declared as the International Day of Human Space Flight in dedication of the first crewed space flight made on 12 April 1961 by the 27-year-old Soviet Russian cosmonaut Yuri Gagarin. Gagarin orbited the Earth for 1 hour and 48 minutes aboard the Vostok 1 spacecraft.
The Lost Cosmonauts or Phantom Cosmonauts are subjects of a conspiracy theory, which alleges that Soviet and Russian space authorities have concealed the deaths of some cosmonauts in outer space. Proponents of the Lost Cosmonauts theory argue that the Soviet Union attempted to launch human spaceflights before Yuri Gagarin's first spaceflight, and that cosmonauts onboard died in those attempts. Soviet military pilot Vladimir Ilyushin was alleged to have landed off course and been held by the Chinese government. The Government of the Soviet Union supposedly suppressed this information, to prevent bad publicity during the height of the Cold War.
Aleksandr Mikhailovich Samokutyaev is a Russian politician and former cosmonaut. Samokutyaev served as a Flight Engineer for the International Space Station (ISS) long duration Expedition 27/28 missions. He also served as the Soyuz TMA-21 commander. He most recently served on the Soyuz TMA-14M Expedition 41/42 crew aboard the ISS. He was hired as a cosmonaut in the summer of 2003.
First Orbit is a 2011 feature-length, experimental documentary film about Vostok 1, the first human space flight around the Earth. By matching the orbit of the International Space Station to that of Vostok 1 as closely as possible, in terms of ground track and time of day, documentary filmmaker Christopher Riley and European Space Agency astronaut Paolo Nespoli were able to film the view that Yuri Gagarin saw on his pioneering 1961 orbital space flight. This new footage was cut together with the original Vostok 1 mission audio recordings sourced from the Russian State Archive of Scientific and Technical Documentation. The film features the music of composer Philip Sheppard.
Space propaganda is a form of propaganda relating to achievements in space exploration and space science. It is used primarily to further a nation's perceived technological superiority, through the operation of a state-funded space agency. Space propaganda was first emergent during the Space Race of the mid-20th-century, an indirect extension of the Cold War.
Monument to Yuri Gagarin is a 42.5-meter high pedestal and statue of Yuri Gagarin, the first person to travel in space. It is located at Leninsky Prospekt in Moscow. The pedestal is designed to be reminiscent of a rocket exhaust. The statue is made of titanium, a metal often used in spacecraft, and weighs 12 tons.
The Cosmonaut Corps is a unit of the Russia's Roscosmos state corporation that selects, trains, and provides cosmonauts as crew members for the Russian Federation and international space missions. It is part of the Yuri Gagarin Cosmonaut Training Center, based at Star City in Moscow Oblast, Russia.