What is extravehicular activity (EVA)?
Q: What is extravehicular activity (EVA)?
A: Extravehicular activity (EVA) refers to an astronaut or cosmonaut getting out of a spacecraft in outer space and then getting back in.
Q: What does "extravehicular activity" refer to in space?
A: "Extravehicular activity" usually refers to a spacewalk outside a spacecraft orbiting the Earth, but can also refer to a moonwalk on the surface of the Moon.
Q: How many Apollo astronauts made spacewalks between the Earth and the Moon?
A: Three Apollo astronauts made spacewalks between the Earth and the Moon while their spacecraft were returning to Earth.
Q: What countries have sent astronauts to do EVAs in space?
A: Astronauts from Russia, the United States, and China have done EVAs.
Q: What is the difference between an EVA and a spacewalk?
A: There is no difference between an EVA and a spacewalk; they are the same thing.
Q: What is an EVA typically done for?
A: An EVA is typically done for maintenance or repairs on a spacecraft or for conducting scientific experiments in space.
Q: What makes EVAs dangerous?
A: EVAs can be dangerous due to the harsh conditions of outer space, exposure to radiation, and the limited oxygen supply in a spacesuit.
