Russian astronauts, be they from the old USSR or modern-day Russia, have always been known as 'cosmonauts'.
An astronaut.
A person that travels in space is known as an Astronaut, also referred to as a Cosmonaut. An astronaut is a person who travels in space. They are usually trained to operate spaceships and other machines that they may need to survive in space.
Cosmonaut. In the US they are referred to as an astronaut
An astronaut.
He/She is called an Astronaut.
So that the astronauts on board can breath, of course. :)
an astronaut
The suit allows the person to walk in outer space, because the suit is designed to with stand the extreme heat and cold of outer space.
Astronomers study astronomy, which is outer space, otherwise some astronauts study outer space when they travel to the moon.
Yes.
Sound must have matter to travel through - we are used to hearing sound that travels through air. But there is no air in outer space. We have heard sound that travels through water, but, there is no water in outer space either. In fact, outer space consists of a vacuum . . . not a floor cleaner, but a condition in which there is no matter - no air, no water, no nothing. So their is no sound transmission from the Sun. Have you heard any?
Hi, What has air got to do with the question? Light = photons, photons have no dependancy on air. Light travels in/ through outer space - no air there.