The Soviet Union issued the first stamp depicting a spacewalk in 1965, featuring cosmonaut Alexei Leonov's historic spacewalk.

Alexei Leonov, a Soviet cosmonaut, became the first person to perform a spacewalk on March 18, 1965.

The first spacewalk was conducted during the Voskhod 2 mission, which was launched by the Soviet Union in 1965.

Edward White became the first American astronaut to perform a spacewalk during the Gemini 4 mission in 1965.

Alexei Leonov's historic spacewalk lasted for approximately 20 minutes.

The longest spacewalk in history was conducted by astronauts Scott Kelly and Timothy Kopra on the International Space Station, lasting 8 hours and 13 minutes.

Spacewalks are primarily conducted for the maintenance and repair of space stations and satellites, as well as for scientific experiments and equipment installation.

NASA has conducted the most spacewalks, with over 200 spacewalks performed by its astronauts.

EMU stands for Extravehicular Mobility Unit, which is the term used to describe an astronaut's spacewalk suit.

The first spacewalk to be broadcast live on television was Edward White's spacewalk during the Gemini 4 mission in 1965.

As of 2023, there have been over 200 spacewalks conducted by astronauts from different space agencies.

Svetlana Savitskaya became the first woman to perform a spacewalk during the Soyuz T-12 mission in 1984.

The first stamp issued by the United States depicting a spacewalk was the 'Astronaut in Space' stamp, released in 1969.

The Soviet Union issued a stamp featuring the first spacewalk conducted by a woman, Svetlana Savitskaya, in 1984.

The Apollo-Soyuz Test Project was the first joint spacewalk conducted by astronauts from different countries, involving the United States and the Soviet Union in 1975.