Soyuz 25
Soyuz U
Soviet Space Program
Rocket Launch Video
Crew

Vladimir Kovalyonok
- Birthday: 03/03/1943
- Role: Commander
- Nationality: Russia
- First Flight: 10/09/1977
- Last Flight: 03/12/1981
Vladimir Vasiliyevich Kovalyonok (Belarusian: Уладзі́мір Васі́льевіч Кавалёнак; Russian: Вла...

Valery Ryumin
- Birthday: 08/16/1939
- Role: Flight Engineer
- Nationality: Russia
- First Flight: 10/09/1977
- Last Flight: 06/02/1998
Valery Victorovich Ryumin (born August 16, 1939 in Komsomolsk-on-Amur) is a former Soviet cosmonaut.
In 1973, he join...
Mission
Soyuz 25
- Type: Human Exploration
- Orbit: Low Earth Orbit
Soyuz 25 was meant to be the first crewed flight to the new Salyut 6 space station. The mission began on October 9, 1977, 02:40:35 UTC, launching Commander Vladimir Kovalyonok and Flight Engineer Valery Rumin into orbit. However, they failed to dock with the station despite five attempts, and had to abort the mission.
The mission concluded with a safe landing back on Earth on October 11, 1977, 03:25:20 UTC.
Location
1/5
Baikonur Cosmodrome, Republic of Kazakhstan
1/5 has witnessed the launch of 487 rockets, including 487 orbital launch attempts. While Baikonur Cosmodrome, Republic of Kazakhstan, has been the site for 1555 rocket launches.
The Baikonur Cosmodrome is a spaceport operated by Russia within Kazakhstan. Located in the Kazakh city of Baikonur, it is the largest operational space launch facility in terms of area. All Russian crewed spaceflights are launched from Baikonur.
Agency
Soviet Space Program
The Soviet space program, was the national space program of the Union of Soviet Socialist Republics (USSR) actived from 1930s until disintegration of the Soviet Union in 1991.
The Soviet Union's space program was mainly based on the cosmonautic exploration of space and the development of the expandable launch vehicles, which had been split between many design bureaus competing against each other. Over its 60-years of history, the Russian program was responsible for a number of pioneering feats and accomplishments in the human space flight, including the first intercontinental ballistic missile (R-7), first satellite (Sputnik 1), first animal in Earth orbit (the dog Laika on Sputnik 2), first human in space and Earth orbit (cosmonaut Yuri Gagarin on Vostok 1), first woman in space and Earth orbit (cosmonaut Valentina Tereshkova on Vostok 6), first spacewalk (cosmonaut Alexei Leonov on Voskhod 2), first Moon impact (Luna 2), first image of the far side of the Moon (Luna 3) and unmanned lunar soft landing (Luna 9), first space rover (Lunokhod 1), first sample of lunar soil automatically extracted and brought to Earth (Luna 16), and first space station (Salyut 1). Further notable records included the first interplanetary probes: Venera 1 and Mars 1 to fly by Venus and Mars, respectively, Venera 3 and Mars 2 to impact the respective planet surface, and Venera 7 and Mars 3 to make soft landings on these planets.