What is Spacewalk

Why in news: Chinese astronauts carry out country's first spacewalk outside space station

Any time an astronaut gets out of a vehicle while in space, it is called a spacewalk. A spacewalk is also called an extravehicular activity.
Extravehicular activity is any activity done by an astronaut or cosmonaut outside a spacecraft beyond the Earth's appreciable atmosphere.
The first person to go on a spacewalk was Alexei Leonov. He was from Russia. The first spacewalk was on March 18, 1965.
The world record for the most spacewalks is held by Russian astronaut Anatoly Solovyev. He has been on 16 spacewalks

Why do Astronauts Go on Spacewalks ?

Spacewalks let astronauts work outside their spacecraft while still in space.
Astronauts can do science experiments on a spacewalk. This lets scientists learn how being in space affects different things.
They can repair satellites or spacecraft that are in space instead of bringing them back to Earth to fix.