Alexei Leonov, a Soviet cosmonaut, conducted the first spacewalk on March 18, 1965.

Extravehicular Activities (EVAs) is the term used for activities performed by astronauts outside a spacecraft.

Spacewalks are conducted for a variety of purposes, including conducting scientific experiments, repairing satellites and spacecraft, and installing and maintaining equipment.

The protective suit worn by astronauts during spacewalks is called the Extravehicular Mobility Unit (EMU).

The longest spacewalk ever conducted was 8 hours 56 minutes, performed by astronauts James Voss and Susan Helms in 2001.

The record for the most spacewalks conducted by a single astronaut is 25, held by Anatoly Solovyev.

Roscosmos, the Russian space agency, was the first to conduct a spacewalk in 1965.

A spacewalk conducted by two astronauts simultaneously is called a Tandem Spacewalk.

The umbilical cord provides oxygen, communication, and power to the astronaut's suit during spacewalks.

The Hubble Space Telescope was repaired during a series of spacewalks in 2009.

A spacewalk conducted to repair a satellite or spacecraft is called a Servicing Mission.

Yuri Malenchenko conducted the first spacewalk outside the International Space Station (ISS) in 2000.

A spacewalk conducted to install or maintain equipment on a spacecraft is called an Assembly Mission.

NASA was the first space agency to conduct a spacewalk outside the International Space Station (ISS) in 2000.

A spacewalk conducted to retrieve a satellite or spacecraft is called a Retrieval Mission.